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Old 03-15-2021   #1
tpepmeie
 
Join Date: Aug 2005
Location: Fishers, IN
Posts: 779
Default Re: porting injector housings to 36MM

Quote:
Originally Posted by wfot View Post
I got the heads already ported, I believe they were actually done by bill krichoffner for kurt white's old 415 from way back, the valves are 41.5mm and 35.5mm stainless. the chambers have had some smoothing/unshrouding done, but I think they could use a little more. Ti retainers/secondaries removed.

I understand that the stage III's have a pretty high peak RPM, so I am expecting peak between 6900 and 7350 or so..
The oversize inlet valves back then were typically 1.600" inches / 40.6mm.
Bill is a great guy, I just talked to him a few weeks ago.

This is a 402" engine? 4.00" stroke?

compression? << nevermind, I see 12:1>>>
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Last edited by tpepmeie; 03-15-2021 at 08:51 PM.
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Old 03-16-2021   #2
tpepmeie
 
Join Date: Aug 2005
Location: Fishers, IN
Posts: 779
Default Re: porting injector housings to 36MM

Quote:
Originally Posted by tpepmeie View Post
The oversize inlet valves back then were typically 1.600" inches / 40.6mm.
I have to correct my post above after talking to Bill. The correct measurements for the valves he installed are: intake 1.580" or 40.132mm and exhaust are 1.445" or 36.703mm.

Perhaps Kurt had additional machining done and new valves after Bill did the initial work?
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Last edited by tpepmeie; 03-16-2021 at 01:09 PM.
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