GT40Y303 and 331??

eodscott

New Member
Jun 12, 2006
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Will this work? I have to buy a new short block. Some internals failed and mine is shot. It was a cheapo anyway. I want avoid buying new heads so I'm either going to buy a long block or a short block and use my heads. Any thoughs?
 
Depends what you have the rotating assembly balanced to. I'm no engine builder but IMO if you are building a low powered low rpm set up (which it looks like you are) you will probably be fine with 50oz balance. BUT with that said I would NEVER build a stroker or any new engine with a stock balancer/fly.
 
You can do a shortblock and put your gt40y's on it. It wont make good power but I do not know your goals and budget.

Click the link in my sig and talk to Rick 91GT (rnhperformance) on here. He built my 347 shortblock.