Shaving heads and compression
Thread Starter
Racer
Joined: May 2012
Posts: 427
Likes: 10
From: Texas
Shaving heads and compression
Looking for a quick understanding on shaving heads to increase compression. Planning on buying a set of TF215's and would like to shave to up compression. Questions would be on head gaskets, do you need to use a different type and why and does it change the geometry between the head and the intake after shaving.
Thx
Thx
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
When i did a head swap I was told by Texas Speed to use the graphite head gaskets when NOT surfacing the block--as they are more forgiving---using aftermarket MLS steel gaskets are best only used when both the heads and block have been tr-surfaced-----
If you live in a stat like calif that only has 91 oct premium I would not get the compression higher than 10.5-1 In states with 93 oct fuel you can go somewhat higher on pump gas but not much more---There are several online sites that can figure out your exact compression ratio by inputting your head combustion chamber CC's--- your deck height- your gasket compressed height and your piston minus or plus CC volume--A flat top piston has a CC volume of "0"---
If you live in a stat like calif that only has 91 oct premium I would not get the compression higher than 10.5-1 In states with 93 oct fuel you can go somewhat higher on pump gas but not much more---There are several online sites that can figure out your exact compression ratio by inputting your head combustion chamber CC's--- your deck height- your gasket compressed height and your piston minus or plus CC volume--A flat top piston has a CC volume of "0"---
