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S/R Torquers/Compression Ratio?

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Old Sep 13, 2002 | 05:23 PM
  #1  
89fastlookinRS's Avatar
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From: kansas
Car: 89 Camaro RS
Engine: 305 TBI
Transmission: 700R4
S/R Torquers/Compression Ratio?

I'm planning on doing my cam swap in about two weeks and I recently came into some money so i'm going to do a 350 tbi intake ported with s/r torquer heads ported, and ported and polished on the exhaust side of the heads. My question is if I milled the heads down to increase the compression ratio would that work out well on a 305TBI?
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Old Sep 13, 2002 | 06:11 PM
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iroc22's Avatar
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From: Surrey, BC
The S/R 305's already come at 58cc and that's gonna put you at your stock 9.3:1 ratio. What do you want to mill them for?
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Old Sep 14, 2002 | 11:26 AM
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89fastlookinRS's Avatar
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Car: 89 Camaro RS
Engine: 305 TBI
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I just heard if you mill heads a little it will raise the compression ratio. Wouldn't this help out?
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Old Sep 14, 2002 | 01:44 PM
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Silverado5.7L's Avatar
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Arn't there extra thin gaskets you can use on the heads that would work like shaving metal, but you can go back later?
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Old Sep 15, 2002 | 10:50 PM
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Yeah you can use different head gaskets to raise the compression ratio and it is like milling the head. 9.3:1 ratio to me seems like the right ratio to run on the street because you can run like 8* advance and 87 octane without detonation.
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Old Sep 15, 2002 | 11:44 PM
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Chuck!'s Avatar
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From: Dayton, O.
Car: 91 Camaro Z28
Engine: LS7
Transmission: M12/T56
Axle/Gears: 3.79
FPP 1094 shim

Its got a .015 compressed thickness which will add to your compression. I had my vortecs (62cc stock) milled .020 and am running the 1094s. We put some "high tack" coating on them. No problem at all with sealing after 540 miles. I made a post about them a while back and poeple seemed to have good luck with them so I figured Id give it a try
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