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Is there .065 -.060 head gasket for 4.030 iron block?

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Old 07-16-2009, 12:56 PM
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Default Is there .065 -.060 head gasket for 4.030 iron block?

Is there .065 -.060 head gasket for 4.030 iron block?

the reason is getting a 418 ci 4.100 4.030 +5 dome with 72cc chamber heads down in compression for 94 oct tune without changing the pistons. as far down from 12.1:1 compression goal

with part # and place to buy if possible


only saw .054 at sdpc

thanks in advance ^_^
Old 07-16-2009, 03:30 PM
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Speed Inc. has 4.060 bore .060 thickness.
Old 07-16-2009, 04:12 PM
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I can get you Cometic Head gaskets in any bore and nearly any thickness you can imagine. I believe there are .067 and .074 standard thickness' available.

Thanks,
Shane
Old 07-16-2009, 05:44 PM
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We stock 4.035" bore and 4.085" bore gaskets in just about every thickness, and anything that we don't have in stock we can have built in a matter of days. Feel free to give us a call.

Thanks!

Trevor
Texas Speed & Performance
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Old 07-17-2009, 04:21 AM
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Thank you very much LS1MCSS ,traCajunSS and @ Trevor @ Texas Speed & Perf.

then I`ll be ordering my top end shortly from TSP including the head gaskets
Old 07-17-2009, 10:16 AM
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Originally Posted by Bader-X
the reason is getting a 418 ci 4.100 4.030 +5 dome with 72cc chamber heads down in compression for 94 oct tune without changing the pistons. as far down from 12.1:1 compression goal

with part # and place to buy if possible
What is the deck clearance on your pistons?
Old 07-17-2009, 11:12 AM
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don`t know that still didn`t get the build sheet from the owner but the block has been installed for now on my stock 98 heads and 224 cam with more than 12.3:1 compression on the old tone .... just revved it and starter it it all looks good .... I`ll send the guy a message saying I want the build sheet ^_^ thanks for reminding me .... any specific reason you`re asking?
Old 07-17-2009, 01:08 PM
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Why were domed pistons used in the first place ?? Just curious what the use for this motor was going to be. Racing at the track, or street beast.
Old 07-17-2009, 02:46 PM
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this is just the shortblock of an engine that had aftermarket heads fast intake and a big cam with +12.0:1 compression and was run on high octane fuel for street racing N/A only by the previous owner .... it did quit well for N/A in the past years but barely used
Old 07-17-2009, 05:14 PM
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Fraser is probably asking because with that thick of a gasket, your quench may not be ideal. Especially if the pistons are in the hole. The thick headgasket isn't the best way to go, but it's a pretty economical way to get the CR back down.
Old 07-17-2009, 05:24 PM
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Oh ok thanks.
Old 07-17-2009, 05:35 PM
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I just don't like the idea of throwing the thickest head gasket on, for 1 it doesn't affect compression ratio, much, 2. loose the quench 3. you're making up for another issue, whether it be compression ratio or dome clearance

if it has 5cc Dome pistons, compression will be high no matter what you do.

Personally just run .040" quench distance ( with steel rods ), messing around with the head gasket will only lead to other issues.
Old 07-18-2009, 06:46 AM
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do you have a solution to the high compression other than changing the pistons?(don`t want to do that)

I want PRC heads but they only come at 72cc .. do you know a place that can open the chamber to 80-85cc to use thinner gaskets and lower my compression? I e-mailed a sponsor here many days ago and still they didn`t reply .... and I lost hope with them lol

I have maybe a few days or about a week before I order and 72cc heads with .065 or thicker head gaskets is the best solution I came up with .... except if the company that I`m buying the heads from can offer a good price for opening the chamber at another place ^_^

Last edited by Bader-X; 07-18-2009 at 01:37 PM.



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