.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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