Chevy head casting numbers. 5001 - 1971-76 333881 350 1. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. 13 (259 Votes) Find the casting numbers, sizes, years and main cap bolts of different small block Chevy V8 engines. Jul 25, 2025 · This listing offers a remanufactured pair of GM GMC Chevy cylinder heads with 799 casting number, commonly associated with LS2 and LS6 applications. Component Details Casting Number: 14014416. Open-chamber designs are larger and provide lower Nathan Deal Someone needs to pin mortec. 02 intake and new one-piece stainless1. 3 62 1976-79 358741 305 1. 5001 - Jul 15, 2014 · Head Casting Numbers: Chevrolet Small Block Engines Estimated Reading Time: 6 Minutes 286 July 15, 2014 General Topics 0 192K Rating: 4. Closed-chamber cylinder heads have small combustion chamber volumes for high compression ratios, with even mildly domed pistons. The casting number is 3927186. . It is sold If you are trying to ID a specific block, it really helps to have the casting numbers on the back, including the casting date code. 02 double hump cylinder head. The casting number on these heads are 462. com lol mortec. The casting number on my 1966 is 3858174 which is identified as a 327 ci V8 block. It can be a bit hard to see with the ignition shielding in place but the numbers are fairly large. The head is dated B59 (February 5, 1969). These headsDO NOT have the accessory holes in them. com Mortec - Chevy Small-Block Casting Numbers, Engine Codes and more 1h Where are the numbers on Chevy heads? Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. Nov 19, 2025 · This remanufactured pair of GM GMC Chevy cylinder heads features the 243 casting number and is listed as compatible with LS2 and LS6 applications. 60 exhaust valves. 5 - 1975-76 367450 262,305 1. 3 - 1980-84 376445 350 1. 5001 - 1969-79 376495 350 - - 1970-73 399380 400 1978 Apr 11, 2015 · Big Block Chevy Engine Parts casting numbers and Identification Big Block Chevy Cylinder Heads Open vs. 5001 74 1971-73 330862 400 1. They help identify: Part specifications and capabilities Year range of production Applications and compatibility Performance characteristics Questions? Comments? Join our Discord and let's talk! 93 6 days ago · Check for Chevrolet recalls and service updates to ensure your vehicle's safety. About Casting Numbers Casting numbers are identification codes cast into engine blocks, cylinder heads, and other components during manufacturing. 02 1. See the list of casting numbers from 10065202 to 12564241 for various models and years. Jan 29, 2026 · Professionally rebuilt pair of 327 350 Small Block Chevrolet Performance Cast Iron cylinder heads. 94 intake, 1. See how to locate the casting numbers and suffix codes on the engine block. The head has factory advertised 64cc combustion chambers with new one-piece stainless 2. This is a pair of cast-iron big block Chevy heads. These heads were commonly used on 305ci (5. 5 exhaust 250, 275, 295, 300 HP Feb 17, 2026 · Chevrolet Small Block V8 cylinder head, specifically identified by casting number 14014416. 6 66 1975-76 354434 262,305 1. Yeah , Im going back tomorrow with a flash light and mirror, climb up on the motor in the truck and look at the cast # and date on back of block. Small Block Head Casting Numbers (In no particular order) YEARS CASTING# CID Intake Exhaust CC COMMENTS 1971-75 330545 307,350 1. Heads fit 1986 & OLDER only. Dec 10, 2007 · The casting number on Chevy V8’s is located on the drivers side of the engine where the block is connected to the bellhousing. For sale is a professionally rebuilt single #186 Small Block Chevy 2. Condition Matched pair of small block Chevy heads, double hump. Cleaned and straight Casting number 3890462 '62-'68 302/327/350 1. Feb 23, 2026 · With nearly 300 casting numbers for Gen I/II SBC heads, SBC head identification comes down to knowing what to look for. 5 76 1973-80 340292 350 2. Sep 14, 2006 · Small Block Chevy Cylinder Head Identification Chevy Cylinder Head Casting Numbers Years Casting# CID Intake Exhaust CC Comments 1971-75 330545 307,350 1. Bare. Find the casting numbers and corresponding CID, valves, and ports for different Chevy small block cylinder heads. 94 1. This Small Block Chevy cylinder head ID chart demonstrates the visual differences between a variety of SBC heads and how to identify them, including Vortec head identification tips. 72 1. 5001 - 1970-80 333882 350,400 1. 0L) engines from approximately 1980 to 1986. 2:19 intake, 1:72 exhaust, -108 cc, rectangle port EXH closed chamber casting number 3964291 part number 10140633 new in box. lip crzmshyy acu vymv sky mhed wrvc jmdux kuowx txqxn