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finally putting motor together

Old Feb 16, 2009 | 10:44 PM
  #1  
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finally putting motor together

I need help with my compression ratio.I'm not sure if my block is decked or not. i traded my set of 302 dome pistons for a set of brand new Forged Trw l2256 pistons already on a set of rods with new rod bolts and resized. they are 4 valve relief, summits site says they are +6.10cc and have a compression distance of 1.563. can anyone tell me or atleast a ball park estimate of my comrpession ratio? im using 882 heads that i just had screw in studs and guide plates put on. im also using a stock 3.48 inch stroke crank.
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Old Feb 17, 2009 | 03:20 AM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: finally putting motor together

What head gasket?
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Old Feb 17, 2009 | 07:00 PM
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Re: finally putting motor together

i need some help on that i was gonna ask that question but forgot. i want one that will help me get the most compression since im using 76cc heads. i know it wont help out much,
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Old Feb 17, 2009 | 07:25 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: finally putting motor together

With a minimal 0.030" between the piston face and the head, you'd be at around 9.1:1. It'll vary very slightly with how far down the hole the pistons are, and the bore and thickness of the head gasket, but you won't be able to get a whole lot better than that.
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Old Feb 17, 2009 | 07:30 PM
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Re: finally putting motor together

alright much appriciated. i really wish i had the money for aluminum heads right now but theyl have to wait. what cam would be good with those heads, ive got a weiand single plane intake. i was thinking like a comp xe284 or 274
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