The casting number will usually tell you whether it&x27;s a 2 or 4 bolt main, 1 or 2 piece rear main, and the displacement. 5.0 LG dates it in the 80&x27;s and it&x27;s a 5.0L engine but it&x27;s not the casting number. RPO LG4 is the whole 5.0L 305 engine package for a specific year including what pistons, crank, intake, fueling, heads, and camshaft etc were. The Suffix codes tell you the original car, year, CID, HP, trans., option, intake, and more. Use with 2113 Small Block Casting Numbers. Feb 25, 2021 &183; Suffix codes are listed in alphabetical order by year. Smallblock Chevy engine suffix codes. The 3970010 is a 350 block casting number that is very generic as to what year it came out of ('69-'79). Small Block Chevy Suffix Codes CE - CMJ. GM body designation. All these are identified here. Quickly, A Chevelle, F Camaro, X Nova. If you&39;re looking at the engine code - this is already known. If you&39;re looking at the casting information and it mentions 3970010 "AFXYB". basically this means "it&39;s used in everything", whereas if it simply states "Y". this means Corvette.. Sep 14, 2012 All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. 6 cylinder engines are stamped on the passenger side of the block behind the distributor. Click here for Chevy Engine Code Listings. For the sake of clarity, we've broken down the locations by engine type and code number type. Engine Identification Numbers L6 - The engine identification codes are located on a machined pad on the right (passenger) side of the block behind the distributor. V8 - On both small- and big-block V8s, the engine ID codes<b> are found on a machined pad on the front passenger side. Corvette Engine Code Stamping Numbers. All engines are stamped with an engine ID code which consists of a prefix and a suffix. The location of this. code depends on the type of engine, as follows Small Block Chevy Machined pad in front of the passenger side cylinder head. Often hidden by the alterator. Big Block Chevy Above timing chain .. For the sake of clarity, we've broken down the locations by engine type and code number type. Engine Identification Numbers L6 - The engine identification codes are located on a machined pad on the right (passenger) side of the block behind the distributor. V8 - On both small- and big-block V8s, the engine ID codes<b> are found on a machined pad on the front passenger side. Small Block Chevy head casting numbers SBC Engine Suffix Codes Casting codes for. Small Block Chevy Suffix Codes CE - CMJ GM body designation. All these are identified here. Quickly, A Chevelle, F Camaro, X Nova. If you&x27;re looking at the engine code - this is already known. Jun 20, 2022 &183; Search Sbc Suffix Codes. Recent hot search TAXapplication code Block Date code, example, A012 Amonth block was cast 01day block was cast 2year block was cast If your block is from a car it will have a partial VIN number stamped on the pad, near the engine ID number Saudi Building Code National Committee Chevy Casting Number identification. Corvette Engine Code Stamping Numbers. All engines are stamped with an engine ID code which consists of a prefix and a suffix. The location of this. code depends on the type of engine, as follows Small Block Chevy Machined pad in front of the passenger side cylinder head. Often hidden by the alterator. Big Block Chevy Above timing chain .. Feb 23, 2012 Gm, or chevy suffix codes are a very misunderstood part of engine identification, and just as under utilized. Very wee standard information has been ready to the mean enthusiast because Gm never released the chevy suffix codes to the consumer.. Jul 22, 2003 last number is the the last digit of the year it was cast in. for example A129 will be jan 12 &39;59 &39;69 or &39;79 or &39;89, see. and i know that it is a 70-up block because it has a TKT three digit suffix stamping code. anything &39;69 older was only two digit such as the other person in this thead&39;s FC code. quot;>. Some engine machining operations (decking) will obliterate the engine ID. Engine ID Code Example V0101CLJ - (V Plant, 01 Month, 01 Day, CLJ Engine Suffix Code) . quot;> Sbc suffix codes identification.