 2270(or so) Build |
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| yeahmag |
 Jan 21 2021, 03:37 PM
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#41
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Advanced Member  Group: Members Posts: 2,421 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California 
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Thanks, Jake. I'm really leaning towards the 86B/86C as I can benefit from the RPM and not having to take a shift in autocross. The 86B/86C would let me have a bit more compression (9.5-10.0), but I really don't want to have to use race fuel and I only have 91 octane easily available. That's why I'm thinking of shooting for 9.5:1 with the bigger cam.
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| Mark Henry |
Jan 21 2021, 03:48 PM
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#42
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
What heads?
With Len's heads you don't have to worry so much, if do your own/local head work with big lift cams you have to do all the checks, every little detail. For example you have to trim the valve guide tops and check for coil bind. I like to think every part of a stroker build is trying to kill your engine, all you have to do is figure out how to make it live without it self-destructing. |
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| Mark Henry |
Jan 21 2021, 03:51 PM
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#43
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(yeahmag @ Jan 21 2021, 04:37 PM)  That's why I'm thinking of shooting for 9.5:1 with the bigger cam. I personally would be slightly more conservative, say 9.3:1, gives some wiggle room and is better suited to 91 gas. |
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| yeahmag |
Jan 21 2021, 03:55 PM
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#44
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Advanced Member Group: Members Posts: 2,421 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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They are heads from Len, but not Len's heads. This PDF has the history and info. I'll be looking them over carefully, checking spring pressure, etc...
finch_heads.pdf ( 966.88k )
Number of downloads: 69 |
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