Stock PTV clearance/ clearance issue?

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03-22-2012, 08:52 AM

#21

colt_impala

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Quote:

Originally Posted by 96capricemgr

I wouldn't go milling heads for compression without porting.

There is a .015 SBC gasket that can be modified to work on an LT1.

Define "modified". And do you have a part number? Also I have full intenentions of porting the heads. That's half my reason to pull them

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03-22-2012, 07:43 PM

#22

FAD2BLK93

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Can anyone answer my question about shaving 10 20 and 30 please i really really need to know, im 1day from head swap! Please and thank u.

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03-22-2012, 07:47 PM

#23

RamAir95TA

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Quote:

Originally Posted by FAD2BLK93

I plan to use the Mr G .026 gasket, i figure compression to 11:1...can someone tell me also how much could be expected from a .010 .020 and .030 mill over the 11:1. I would think 11.5 would be better for these motors.

The more you take off the smaller the CCs become, but there is no magical formula. You'd have to have the combustion chamber volume measured (CC'd). Over-milling the heads is not an accurate means of increasing compression. Just get a gasket that gives you the compression you want.