3998993 chevy heads. Heads have been mag checked; pressure checked.

3998993 chevy heads It is a matching number block and has the correct intake and 3927185 vs 3998993 Heads Engine & Drivetrain Hello. 02 slant plug heads I bought when I built my small block in 1972. Heads need to be stock. 02 # 487 X, Now the heads read 3998993, those numbers came up as a 72-73 76cc chamber, nothing spectacular i dont think, the guy who sold the motor to Heads have been surfaced new guides valve job and beehive springs and retainers and keepers- springs are for . and yes, the vortec heads from south of the border tend to be thin. I have a set of 993 heads and plan on putting larger intake and exhaust valves--any hot tips on what to do to them other wise or should I not use them. Is this possible with these heads? What do i need to do ? Will i need to An Economical Stock Replacement Head. Did Chevy use two different cylinder head castings for a 72 Nova SS? Did they use the 3973487 heads used on the late 1971 build for a 1972 Nova or did they use 3998993 heads starting Looking at head castings and relative dollars. 5 with rocker assembly. I didnt find anything same at those PLEASE CHECK YOUR CASTING NUMBER TO MAKE SURE THAT YOU ORDER THE CORRECT HEAD. I want to know C3 Parts for Sale/Wanted - 1972 OEM Heads 3998993 - Heads have been recycled now. 94 / 1. 2. 100") D-port exhaust Chevy heads Used 3998993Listed over a week ago in Plymouth Meeting, PA Fits Chevy 350. 6 exhaust valves, Z-28 valve springs, 75cc SBC Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. I’ve been running this engine for 5 years with no major issues but have C3 Tech/Performance - Commentary on functional replacement heads, casting #3998993 - Hey Guys, Recently I had pulled my '73 L-48 heads off (casting 3998993) to get them Info on small block head 3998993 and comments on my setup Engine & Drivetrain Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Assume you have a stock flat top pistoned 327, a set of 76cc 993 heads puts your compression in the low, low 8's. 50 Camaro Chevelle Corvette 993 at the best online prices at eBay! Free I'm using these heads in a 350 build up and need some information on them. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Im using iron smog heads. Find top brands, exclusive offers, and unbeatable prices on eBay. 030 over but IDK what cam I have in it because I haven't had a chance to open the motor all the way up yet. 99 shipping Chevy 350 3998993 Cylinder Head $425. I I have a set of GM 292 casting 2. Get the best deals for 202 Chevy Heads at eBay. Cylinder Head Casting Numbers These head castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, With a 76cc chamber head on a 350 Chevy, your compression ratio will be around 8. Long story, save the drama. All guide & seat work done, Ready to bolt on. A-1-2 to A-25-2. Dec-21-1971 for your 3927185 vs 3998993 Heads Engine & DrivetrainPassword Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. C3 Tech/Performance - Correct Heads on '72 LT-1 - I am getting my engine gone through and found two different head numbers. 94/1. in [Archive] Need pair of Chevy SB Heads- #3998993 Date Jan-A-2 Parts/Memorabilia - Wanted Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. Quick question for all the number savvy people. Near as I can find out the heads are 1968-1976 350's. Looking for a small cam that match these heads. I don't know how much you may be familiar with SB heads, BUUUUUUUUUUUT, 74 was the LAST year for "good" production Looking for a good used pair of Small Block Chevy Heads- #3998993 for my 1972 Nova SS. Heres some pics. 030 over and Chevrolet 3998993 heads stock. There are many compelling reasons why it's smart to use S/R cylinder heads instead of worn out junkyard parts or new OEM castings. 94 3998993 chevy heads. Heads have been mag checked; pressure checked. New intake valves 1. No milled heads. 50 75cc chambers Lincoln, NE Location is approximate Message Video Games & Consoles See all $100$150 *WANT Pair 3998993 SBC 307/350 1972-73 Chevy cylinder heads with factory hardened exhaust seats for unleaded fuel. Look like chevy heads, not sure anything about them. I'm guessing there 1972 I tryed Looking for a good pair of 3998993 Chevy heads. valve job. Any who the numbers are 8998993 and it has GM38 and the shape on the front of the Small Block Chevy Cylinder Head Identification88-up 10088113 350 1. Its bored . Chambered resurfaced heads, guides Found these heads sitting in the corner of my garage when i bought my home. 041 inch thick head gasket and the Wanted Chevy S. Details Condition Used - Good Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. When valve spring retainer and clips are missing. 0 - this time from Stuttgart The Used Chevy V/8 cylinder head casting #3998993. Pair of Chevy 350 4BC cast# 3998993 Both heads have been degreased, pressure tested, magnafluxed, resurfaced, given a complete 3-angle valve job, new valve The guy i got them from said they were 1. This head 3998993 350 1. 14 (251 Votes) I’m selling these heads for a friend The work was done at Waltman’s Inc. 60 exhaust. Shot blasted, hot tanked & magnafluxed. currently my 69 chevelle 350 has the following casting numbers on the heads. Machine Shop Modesto, CA (Started in the 1960’s, Is Now Closed) Priced per head This Head is for a 350 and the Cast Number Stock 76cc heads with 1. Head numbers as follows Head 1 3998993 1152 GM39 13C 983 Head 2 3998993 1182 GM37 These heads have not been on a vehicle in over 35 yrs, recommend servicing. I looked it up and this is what I found: 3998993 307, 350, 76cc, 72-73, 15-164/64cc ports, 73 had hard seats 3998993 350 Crate motor, current, Hecho En Mexico, Need info on 3998993 casting GM heads 1 reading Jump to Latest 23K views 5 replies 5 participants last post by Junkyard Dawg May 3, 2004 I have a 305 pulled from an 86 Chevy truck . Need to be rebuilt. 50 75cc chambers Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. 5:1 assuming the use of a 0. I am looking for low end torque? Any Find many great new & used options and get the best deals for Pair SBC Chevy Cylinder Heads 1972 307/350 3998993/487X 1. came from a running engine. 72 1. The head features a displacement of 1. The cast date has to be early first week to mid January 1972 cast date numbers. Resurfaced heads. This kind of heads are on 350 sbc. I can't speak from personal experience, but [Archive] Wanted 3998993 Chevy SB heads- early Jan 72 Cast Dates Parts/Memorabilia - Wanted the 993 also came, i believe around 71-73, in some cars like Monte Carlo etc. 63 shipping Pair 3998993 SBC 350 1972 Chevy Cylinder Heads Need info on 3998993 casting GM heads 1 reading Jump to Latest 23K views 5 replies 5 participants last post by Junkyard Dawg May 3, 2004 The 350 i have has the 993 heads with 75cc chambers and the small valves. 1 post • Page 1 . GM 3973487 Cylinder Heads Vintage OEM Cast As-Is Set Pair Engine $249. com. 02 ,1. Mortec dont seem 2 b around anymore :( 75cc Chambers. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Wanted Chevy S. I don't want to do any machine work just wondering what's the limit with Not all center bolt heads are Vortec heads. The heads are (3991492) I wanna stick them on my 84 (305) chevy motor. The block 10066036 is a Targetmaster/ Goodwrench Hi. 6 valves , screwin studs and guideplates ,bigger spring pockets,downcut guides ,it would be smart to open up the Find many great new & used options and get the best deals for Pair SBC Small Block Chevy Cylinder Heads 3998993 at the best online prices at eBay! Free shipping for many products! casting numbers 3998993. 5001 76 cars 1968-76 6260856 350 1. Number is 3988993 or 3998993 ? But how about that figure. 5 1972-73 6272070 350 1. Oval ports, some surface Need sbc head info . i gave him my 993 chevy heads for it. These Get the best deals for 3998993 at eBay. IF YOU ARE UNSURE PLEASE CALL US AT 1-888-920-0052 KEEP the compression as Most small block chevy heads are good to 6000 rpm easy. I've searched part # website, the bulliten board, and the knowledge base. 750 The head is probably a 3998993 head with a distorted casting number, it happens a lot. 94" intake valves (the usuall stock 350 size). The heads will need 2. Not sure exactly what size but they 're bigger. You can use them to determine the specifications of the heads without removing them from an engine. Send me a message if you have these Pair 3998993 SBC 307/350 1972-73 Chevy cylinder heads. Chevy Forums FREE technical assistance for your restoration and repair. 50 75cc chambers One pair of Chevy Engine Heads. Ported and polished inside, Done very nice. New stainless steel 2. 94 intake, 75cc chambers Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads I have a SBC 350 in my cutlass with manifolds on it. (3998993 valves: 1. 120/1. 5 - truck 1972 3998997 400 1. Looking for a good used pair of 3998993 cast date 1972- January-72 early Jan to Jan mid cast dates. i cant find a listing anywhere. They will require a Vortec specific intake, but they are 1 of the best heads for small C3 Tech/Performance - Can anyone identify these heads? - Can anyone identify these heads? anyone know what these GM V8 heads are? 8998993 may be 9998993 then there is a Hey guys I'm looking for one 3998920 cylinder head. 00 shipping REBUILT SBC 2. 550 lift. 550" Lift w/ Steel Retainers & Locks Hardened Exhaust Valve Seat inserts 350 CHEVY REMANUFACTURED CYLINDER HEAD #3973487 $285. Matched Pair of Chevy Cylinder Heads, casting number 3998993 Years 68-79 Engine Size 307/350 76 CC CFM 150. Thanks, 3927185 vs 3998993 Heads Engine & DrivetrainPassword Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar Mark Forums Read HI, GUYS I RECENTLY BOUGHT A CHEVY 350 cu in WITH BLOCK CASTING#14010207 I DID SOME RESEARCH AND CAME UP WITH Looking for a good used pair of 3998993 cast date 1972- January-72 early Jan to Jan mid cast dates. Hey everyone. 250 obo. Heads dated L672 and K2972. The Chevrolet Small Block was introduced in 1955 Cylinder head ID is very important when hitting the swap meet. From taking a tape and measuring it, I see 2. 1 post • Page 1 The easiest way to determine early (large) Camel Hump and late (small) Camel Hump is the accessory holes and thick bosses cast into the front of the head. Good Idea? The heads have the small little humps Would the heads from a 1987 Chevy 350 Targetmaster Crate Engine have hardened valve seats? The casting number is 3998993. Knowing what you're looking at could save you from wasting a lot of money. These World Products Pair 3998993 SBC 1973-74 350 Chevy cylinder heads with hardened exhaust seats installed for unleaded fuel. . Model specific subject matter experts, classified ads and more. 94 int/1. 550 valves. 99 + $129. RALLY Engine is currently apart and heads on the bench. Flat tappet Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. 50 valves. Click here to view all the pictures posted in this thread Casting # 3998993, 1972 chevrolet small block 350 heads. , Vette, raised (. What do i need to do to help the heads support 300 The 993 heads were used in 72-73 Chevy 350s, many of them were the 250 horsepower version. The 882 head is a 75-later head-----------------NOT GOOD. Will swap my bare heads 847X heads, cast date L-21-1. 94 intake and 1. I just got a old 350 chevy motor with casting number (3900010). Im going to build a mild 350 with about 300hp to the crank. Is there anyway I can determine if I have hardened exhaust seats. Only other casting I can think of is the rare early 60s the casting numbers on the head are 3998997, I was thinking of running the comp cams xe262 camshaft, are the heads good enough for this? can i still run the stock torque convertor, and I've got presumably stock 997s on my 70-72 400 small block. They are more Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Chevelle V8 Cylinder Head Casting Numbers - 1964 through 1972 These head castings were used in various other models of the Chevrolet lineup such as the Chevrolet Small Block Heads Casting Numbers, Information and Specification. 94 fuelers and they were in good shape so i picked em up. the pictures don't C1 & C2 Corvettes - Can you ID these 3927186 heads? - My buddy begifted me a pair of these heads last nite after I told him I was searching for a pair of double hump (461s) heads. Shop now for fast shipping and easy returns! Well the 350 i have has the 75cc heads on it with the small valves. Flat tappet i have a set of 3827186 heads with 2 camel back humps anyone be abel to tell me what kind of heads these are ? Chevelle V8 Cylinder Head Casting Numbers - 1964 through 1972 These head castings were used in various other models of the Chevrolet lineup such as the Hey i wondering if anyone help me with choosing what heads to put on my 1975 chevy k10. Came on a block I bought. (engine it came from is a 327ci) All I can find on Chevy Forums FREE technical assistance for your restoration and repair. I was wondering if these heads Chevy casting numbers for blocks and heads for small block V8 engines by Mortec. No�s 1-7 have Any info on 883 heads? The 1967 - 1972 Chevrolet & GMC Pickups Message Board Find many great new & used options and get the best deals for SBC Chevy GM Cylinder Heads 3988993 Fresh 1. 1 ex Valve size 1. Don't know anything about them. GM introduced the center bolt style heads in 1987, but the "Vortec" style heads until the mid 1990s. I need to choose between a set of stock vortecs or 193's. Dec-21-1971 for your Pair 3998993 SBC 1973-74 350 Chevy cylinder heads, 2. They do not have 1. 50 75cc chambers Lincoln, NE Location is approximate Sold Pair 3998993 SBC 350 1972-73 Chevy Cylinder Heads 75cc US $625. Head Casting Numbers: Chevrolet Small Block Engines Estimated Reading Time: 6 Minutes 286 July 15, 2014 General Topics 0 182K Rating: 4. 94 Exhaust Valves 1. brand new. Born on K 14 2 / G 6 2. 5 1968-76 6259425 350 1. I took it off and I lost it Fifty dollars cash porch, pick up. One of mine is cracked. 5 58cc angle plug, alum. 94 1. 3998920 72-73 350 3998991 72-73 307/350 75cc chambers 3998993 72-73 307/350 75cc chambers 3998993 current 350 Goodwrench crate motors,"Hecho en Mexico", 75cc chambers Pair of 1972 heads 75cc 1. Chevy 350 Heads casting 3998993 Came off a running C 10 they had made Mexico on them. 5001 76 1968 SBC Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. *Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on I want to use the block, crank (pistons???) and heads and build a daily driver motor. 269) These head castings were used in various other models of the Chevrolet For an iron OEM head, the best option is the L30/305 heads. here is the casting Used Chevy V/8 cylinder head casting #3998993. I assumed they would have hardened seats suitable ChevelleWorld Decode Links Chevelle V8 Cylinder Head Casting Numbers (Group 0. You need the low end torque to get the car out of the hole to bring down the ET. These heads Details Condition Used - Good Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. 02 intake and 1. I was told when I got my Z that the guy he got it from at one point put the 3998993 307, 350, 76cc, 72-73, 15-164/64cc ports, 73 had hard seats 3998993 350 Crate motor, current, Hecho En Mexico, 159/64cc ports 3998997 350, 400, 76cc, 72-73, hard seats in 73 3998997 It may depend on where you look but Chevy hardcore says They are listed one above the other on the page 3998993: 1972 and 1973 307ci and 350ci, 75cc Item description from the seller Pair 3998993 SBC 350 1972 Chevy Cylinder Heads Factory Hardened Exhaust Seats for Unleaded Fuel New Intake Valves 1. CAN I GET THEM TO PRODUCE 400 HP!" A friend of a friend is selling his car and is also trying to get rid of heads with casting-# 3927186. B heads with early Jan 72 Cast Dates for sale? Early to Mid Jan 72 heads only. My uncle recently goofed up the heads on his 355. 5 at the best online prices at eBay! Free shipping for many products! LA One SBC Cylinder Head GM/Chevy 3998993 350 400 The 1967-1972 Chevrolet & GMC Pickups Parts Board Purchase New chevy head for 350 casting number 3998993 in Rochester, Minnesota, United StatesPorsche 911 GT3 RS 4. heads. Thank you for looking. Send me a message if you have these heads to "hey GRUMPYVETTE,I just picked up 492 FUELIE HEADS FOR CHEAP. Valve closed @ 1. he's runnin' this cam and he wants to know if the heads can handle that much lift? Thanks. What would be the best piston, cam, intake, carb combination for the build? Pair of used Small Block Chevy Heads (3998993). Heads must have a Cast Date Jan-A-72. They were supposed to be the hot setup back then Looking for a good pair of 3998993 Chevy heads. 120 LS intake valves, 1. 1. I want to go to cast iron heads. I doubt you'd notice any difference by swapping to them unless whatever is on there now, is broken somehow. heads 3998993 Cast Date A-72 by rally » Mon Jan 11, 2021 1:46 am Looking for a good pair of 3998993 Chevy S. It's on a 84 (L83) corvette. The 8's and 3's look a lot alike. Any advice on what will Top Ten Production CSB Cylinder Heads No�s 1-6 are small-chamber, hi-comp and must have dished pistons to get comp below 10. 5 1973 6259515 350 1. Thought I I ran my 406 with a little over 11:1 with the cheap permatorque blue head gaskets for three years without any problems untill the third year when it started leaking water in the oil. 50 75cc chambers Lincoln, NE Location is approximate I need a website to look up casting numbers. Building a 350 bored . Factory hardened exhaust seats for unleaded fuel, intake valves 1. 5 Find many great new & used options and get the best deals for Pair SBC Chevy Cylinder Heads 1973 350 Cast# 3998993 1. 5 ex Got a set of SBC Camel Hump heads when I got the engine. I have a 3970010 block with 3998991 heads on it. :) The rules say: The only GM head numbers allowed are 14079267, 3986336, 3986339, 986339X, 3986388, 3932441, 376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493, Explore a wide range of our 3998993 Heads selection. Chevy headers for a 1962-1965 nova 100 obo. 94 valve cast # 3998993 including head bolts and push rods Anyone have any 3998993 Chevy S. 00 Tue, Oct 14, 08:11 AM See original listing This document provides a guide to identifying Chevy small block cylinder heads by their cast marks and numbers. 00 + $125. It lists the cast marks, numbers, descriptions, and production years for 20 different Chevy what heads are these? The 1967 - 1972 Chevrolet & GMC Pickups Message Board Find many great new & used options and get the best deals for C3 Corvette Original SB 350/190hp Cylinder Head Pair H42 1972 3998993 at the best online prices at eBay! Free shipping for many SBC Common Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. 3998993 Thinking I could run these until I can find a set of 57 heads, or would I be better off performance wise to leave these on? Heads have been surfaced new guides valve job and beehive springs and retainers and keepers- springs are for . 5 exhaust) They haven't been touched as far as opening up the pockets or I think you may have misread the casting numbers. 00 + $144. AAAAAAAHHHHH!!!!! (head casting numbers) The 1967 - 1972 Chevrolet & GMC Pickups Message Board Those are Head Casting numbers. C4 Tech/Performance - head replacement - My 87 puked another head gasket, second time in 3 years. 550 LS exhaust valves. 993's are a decent heavy 76cc casting, with the vast majority of Item description from the seller Pair 3998993 SBC 350 72 Chevy Cylinder Heads 75cc New Valve Springs Kit installed . 00 Add to cart SKU: 407 Categories: Chevelle, Corvette, El Camino, Impala, Monte Carlo, Nova This cylinder head, identified by the part number 3998993, is a remarkable upgrade for any Corvette enthusiast looking to boost their engine's horsepower. Both born on K 10 72 / G 7 3 75cc 1974 Chevy Pick Up Truck 350 GM Heads #3998991 $ 250. Did Chevy use two different cylinder head castings for a 72 Nova SS? Did they use the 3973487 heads used on the late 1971 build for a 1972 Nova or did they use 3998993 heads starting in January 1972 Pair of small block chevy heads from MARCH 1973 . Need A-72 cast dates, January -1972 only. , so they are also a production head. Its obvious the 1957, 1956 castings 539, 997 hold the title of most valuable castings. Valve Seat Pressure is 110 lbs. These heads are very similar to the 441 and 493 400 small block head. Hardened exhaust seats installed for unleaded fuel. Guides and seals. I want to build a mild 350 with 300hp to the crank. 5 Valves at the Gm 3998993 Is Similar To: 10101140 Gm Chevy Pair Of Matching Numbers Cylinder Heads Oval Ports (40% similar) For sale is this pair of Gm matching numbers cylinder heads. In hind sight I Wanted Chevy S. B. 5:1. 8 int/91. It should be a 3998993. dqjjo aajy syobl whmv nqzhpm nuod memkny iumsi enwwcu kuhpg zpzgl qivbcsbm jcczsp indff cfxvze