hello everyone I have a 1987 camaro z28 with a borg/warner T5 transmission in it and i took out the stock GM 5.0 L and want to replace it with a GM 5.7 which is a one piece rear main seal and the 5.0 is a two piece is there an adapter or some way that i can install the T5 trans on the 5.7??? PLZ HELP. thank you

 

Welcome to TGO. A search on site will often provide the info you're searching for. IIRC, I used GM part # 14088646, a light-weight flywheel with 153 ring gear teeth on my 350 HO. The standard flywheel is 14088650. Both are designed for a one-piece crank seal.

JamesC

 

a friend of mine told me i can use a flywheel off an 85 or older block and it will work.

 

My friend told me that i can also use a flywheel off an 85 or older GM block and it willl work for a one-piece crank seal is he right??...

 

No. The following is a summary from my 350 HO Specifications: 1958 through 1985 had a 3.58" diameter flywheel flange bolt pattern. Since 1986, the bolt pattern is 3.00. The change in diameter was made to accommodate the one-piece rear main seal.

You should be able to reuse the flywheel from your 87.

JamesC

 

the bolt pattern and dia. is a little different i dont think it will match up the 350 block which was attached to a 700R4 is a one-piece rear main seal and the 305 which was attached to the M5 is a two piece rear main seal I need a different Flywheel dont I???? and what type??

 

Sorry, I guess I'm confused. If the T5 is from an 87, it should have a flywheel for a one-piece, not a two-piece (which was discontinued in 85). At any rate, the part numbers are above.

JamesC

 

Your 87 5.0, should be a 1-piece rear main, unless somebody changed something & it is not original.