Casting #'s on a 305
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Junior Member
Joined: Aug 1999
Posts: 30
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From: windsor,ont canada
Car: 1986 305 IROC Z
Engine: 305 tpi
Transmission: 700R4
Axle/Gears: 3.42
Casting #'s on a 305
Does anyone here know exactly where the casting numbers are on a 305 block. I happen to have one and dont want to take it apart to find out what year it is and if it has a roller cam.
THANX
THANX
Member
Joined: Apr 2002
Posts: 157
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From: Alton IL
Car: 87 aniv vert, 90 Iroc, 87 LT
Engine: LB9, LB9, carbed 305
Transmission: MM5, MM5 conversion, MM5 conversion
Axle/Gears: 3.45, 3.73, 3.73
if its a one peice rear main block, then it has the provisions for a factory roller cam, wether it has one in it or not
one peice rear main is 87 and up blocks, and if it is from a truck it is not a roller cam. if it is a camaro block then it is. not to sure on the full size cars like the caprice, etc.
hope that helps
ps, if you dont know wether it is a one peice main seal then look at the back of the block. one peice main seals have a bolt on adapter that is on the back of the block
one peice rear main is 87 and up blocks, and if it is from a truck it is not a roller cam. if it is a camaro block then it is. not to sure on the full size cars like the caprice, etc.
hope that helps
ps, if you dont know wether it is a one peice main seal then look at the back of the block. one peice main seals have a bolt on adapter that is on the back of the block
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