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Re: [Fot] Piston to head clearance

To: Steven Belfer <steve@artwithcars.com> //9P+Rm0vBb5pj4DyDJmC/ajbrokosNHk9hSS17oJ7mq95ysAS3mpByzeCraHsybdeSNGCnO0eE+hZHQvM94UGR5odv4KwmaHb+Dd28MMTlm09OzR2+l9MMm 1E6thPayNY52fxBKdryW71H+2Sw/0T12UrHCNRBCJoaThGXqWUzWL4O1qD6SaBqy
Subject: Re: [Fot] Piston to head clearance
From: Dave Hogye via Fot <fot@autox.team.net>
Date: Thu, 11 Jan 2024 10:31:02 -0800
Cc: fot@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <1E67C861-5F29-47D4-A2F1-C8AC3A6B9462@artwithcars.com>
.030â?? if I remember correctly. Max revs 6200, race prepped standard crank, 
Carrillo rods, factory cast 87mm Hepolite pistons. 
Dave H. 
Sent from my iPhone

> On Jan 11, 2024, at 10:01â?¯AM, Steven Belfer via Fot <fot@autox.team.net> 
> wrote:
> 
> You want as little as necessary because this is where your high CR comes 
> from.  The thickness of the head gasket is the major part of P to H 
> clearance.   I ran .026 P to H clearance at Cal Speedway and the piston 
> kissed the head and I spun a bearing.   My machine shop guy likes .040 for 
> safety but Iâ??ve been running .032 and itâ??s working out great
> ~Steve
> 
> 
>> On Jan 11, 2024, at 9:13â?¯AM, Lorne Fritz via Fot <fot@autox.team.net> 
>> wrote:
>> 
>> 
>> Hi.  In the past I have had pistons hit the head and leave a mark(TR3/4).  
>> What piston to head clearance are most of you running? Thanks in advance,   
>> Lorne
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