head gasket options for 4.190" bore?
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Joined: Nov 2002
Posts: 3,656
Likes: 282
From: San Francisco, CA
head gasket options for 4.190" bore? I have a resleeved 4.190" bore 5.3 from ERL. Flat top pistons are finally being ordered this week as my budget is back in action. What are my head gasket options?
LS7 crank/Ti Rods
Cammotion Solid roller, Jesel everything
AllPro 58cc LS7 heads 430cfm
AllPro LS7 intake - CnC'd and then cleaned up by hand to match heads
4500 series TB
Fuel e85
I would like a compression ratio compatible with e85. 13.5:1 to 13.8:1 I have read is about the limit. Goal is 700rwhp on $2/gal fuel
using a compression calculator and .051" compressed gasket with .005" deck clearance height yields 13.8:1
http://www.summitracing.com/expertad...ion-calculator
Are there thicker/thinner gaskets? Once the shortblock is assembled I'll order the gaskets to confirm where the piston sits in the hole.
I'm putting the RX-7 on a diet with CF doors, lighter battery, 1/2 tank fuel (Radium surge tank), and bias ply racing slicks which should put it at around 2640lbs wet without driver and 315's front/335's rear. Should be a fun Street/Road Race car!
LS7 crank/Ti Rods
Cammotion Solid roller, Jesel everything
AllPro 58cc LS7 heads 430cfm
AllPro LS7 intake - CnC'd and then cleaned up by hand to match heads
4500 series TB
Fuel e85
I would like a compression ratio compatible with e85. 13.5:1 to 13.8:1 I have read is about the limit. Goal is 700rwhp on $2/gal fuel
using a compression calculator and .051" compressed gasket with .005" deck clearance height yields 13.8:1
http://www.summitracing.com/expertad...ion-calculator
Are there thicker/thinner gaskets? Once the shortblock is assembled I'll order the gaskets to confirm where the piston sits in the hole.
I'm putting the RX-7 on a diet with CF doors, lighter battery, 1/2 tank fuel (Radium surge tank), and bias ply racing slicks which should put it at around 2640lbs wet without driver and 315's front/335's rear. Should be a fun Street/Road Race car!
Last edited by gnx7; Feb 6, 2016 at 08:46 PM.
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Joined: Aug 2006
Posts: 326
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From: North Bay, CA
I have a resleeved 4.190" bore resleeved 5.3 from ERL. Flat top pistons are finally being ordered this week as my budget is back in action. What are my head gasket options?
LS7 crank/Ti Rods
Cammotion Solid roller, Jesel everything
AllPro 58cc LS7 heads 430cfm
AllPro LS7 intake - CnC'd and then cleaned up by hand to match heads
4500 series TB
Fuel e85
I would like a compression ratio compatible with e85. 13.5:1 to 13.8:1 I have read is about the limit. Goal is 700rwhp on $2/gal fuel
using a compression calculator and .051" compressed gasket with .005" deck clearance height yields 13.8:1
http://www.summitracing.com/expertad...ion-calculator
Are there thicker/thinner gaskets? Once the shortblock is assembled I'll order the gaskets to confirm where the piston sits in the hole.
I'm putting the RX-7 on a diet with CF doors, lighter battery, 1/2 tank fuel (Radium surge tank), and bias ply racing slicks which should put it at around 2640lbs wet without driver and 315's front/335's rear. Should be a fun Street/Road Race car!
LS7 crank/Ti Rods
Cammotion Solid roller, Jesel everything
AllPro 58cc LS7 heads 430cfm
AllPro LS7 intake - CnC'd and then cleaned up by hand to match heads
4500 series TB
Fuel e85
I would like a compression ratio compatible with e85. 13.5:1 to 13.8:1 I have read is about the limit. Goal is 700rwhp on $2/gal fuel
using a compression calculator and .051" compressed gasket with .005" deck clearance height yields 13.8:1
http://www.summitracing.com/expertad...ion-calculator
Are there thicker/thinner gaskets? Once the shortblock is assembled I'll order the gaskets to confirm where the piston sits in the hole.
I'm putting the RX-7 on a diet with CF doors, lighter battery, 1/2 tank fuel (Radium surge tank), and bias ply racing slicks which should put it at around 2640lbs wet without driver and 315's front/335's rear. Should be a fun Street/Road Race car!
