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Re: How much Knock Posted by Nick Taliaferro [Email] (#78) [Profile/Gallery] (more from Nick Taliaferro) on Mon, 10 Dec 2018 07:42:40 In Reply to: How much boost...., Steven Mitchem, Sat, 8 Dec 2018 05:16:01 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Stock B204 Gasket worked great at 500Ftlsb.. Gave us over 600Whp. Should be fine.. Went over 710whp with a B205 gasket.
It is mainly in the surface finish of the block and head. Some of the old shops don't have the right tools to get a proper smooth finish on the sealing surface. We had lots of issues learning that one. Lots don't surface the block, or get crazy with grinder disks and that can be a problem.
At high outputs the peaks and valleys of the rougher machining make pathways that start the gasket failure.
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