Anything else while heads are off?
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Grand HDF Member
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From: Iowa
Anything else while heads are off?
So I have a TC88 with an Andrews 37H and a 4 degree offset, a heavy breather, and a Fat Cat installed now and the heads are going out to get ported and milled down to 78CC to up my compression to 9.54:1, 8.99:1 corrected. I have higher flowing injectors with the corrected angle to install when reassembled but while the heads are off are there any suggestions for other work? Engine has 47K on it and I've thought about just getting the 95CI bore and new pistons done but it just sounds like that stage would just add maybe 7-8% and eat up a lot of gas. It doesn't seem worth the $600 for boring, pistons, and compression releases.
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From: san antonio
So I have a TC88 with an Andrews 37H and a 4 degree offset, a heavy breather, and a Fat Cat installed now and the heads are going out to get ported and milled down to 78CC to up my compression to 9.54:1, 8.99:1 corrected. I have higher flowing injectors with the corrected angle to install when reassembled but while the heads are off are there any suggestions for other work? Engine has 47K on it and I've thought about just getting the 95CI bore and new pistons done but it just sounds like that stage would just add maybe 7-8% and eat up a lot of gas. It doesn't seem worth the $600 for boring, pistons, and compression releases.
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Grand HDF Member
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From: Iowa
Thanks, djl. I've been wondering about a measurement that is on the compression calculator. They state that the stock 88 and 96 head gasket bore is 3.850 and that the big bores are 3.910. What is this measurement and is it just inherent to boring the cylinder to increase the gasket bore? Is this just the inner diameter of the gasket itself?
Last edited by Jay Guild; Dec 5, 2016 at 01:58 PM.
HDF Community Team
Joined: Jun 2006
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From: san antonio
Thanks, djl. I've been wondering about a measurement that is on the compression calculator. They state that the stock 88 and 96 head gasket bore is 3.850 and that the big bores are 3.910. What is this measurement and is it just inherent to boring the cylinder to increase the gasket bore? Is this just the inner diameter of the gasket itself?
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Grand HDF Member
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Got my quotes for the work and asked about getting a pocket port since they are already doing a valve job and wondering if it is really worth the additional $300 or if I should just wait to save up for a $1000 full CNC and enlarged valve job.
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Actually once bored to 98", with the proper compression, you will traditionally/historically increase fuel economy
Our Stage I Heads, with our 98" piston/boring/complete Cometic gasket set, ring end gaps are set and installed on the pistons is only $1300.00.
Bolt it together and tune/ride/smile.
Scott
Our Stage I Heads, with our 98" piston/boring/complete Cometic gasket set, ring end gaps are set and installed on the pistons is only $1300.00.
Bolt it together and tune/ride/smile.
Scott