rebuild 305
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Joined: Feb 2014
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rebuild 305
I have a 305 I got bored out .030 now I need to know what to buy. Would like to get more performance out of it but not so much that I need to change the computer,so any help would be appreciated.
Supreme Member
Joined: Oct 2004
Posts: 4,528
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: rebuild 305
Factory rebuild, K&N filter and exhaust then DONE 
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Junior Member
Joined: Feb 2014
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Re: rebuild 305
I will try this one part at a time I guess, now that everyone has had their fun. How do I figure out what piston to use. I need a parts list, as you can tell this is my first time rebuilding so true help is needed here. I guess if I do need to change the computer so be it. 
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Joined: Jan 2009
Posts: 2,317
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: rebuild 305
more details of the car,transmission,axle ratio,carb/injection used,performance expectations, will be needed before any recommendations can be donefor the pistons,cast flattops will likely be good enough-be aware that inexpensive"rebuilder"pistons usually sit about .030 or more down in the cylinder.
for the pistons,cast flattops will likely be good enough-be aware that inexpensive"rebuilder"pistons usually sit about .030 or more down in the cylinder. 
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