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Author
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Topic: Cam/piston clearance
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MrWesson22
Gearhead Posts: 610
From: Dacula, GA
Registered: Sep 2000
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posted 03-05-2001 11:17 PM
   
What needs to be done to stock style pistons to clear a cam with around .585 lift (with 1.73 rockers) on a 351C 4V? I'm assuming they'll have to be flycut and it won't fit stock.------------------
Neal
Member #723 (M&M rookie)
[email protected] AIM: MrWesson22 69 Gulfstream Aqua Grande
351C/Toploader 4sp
back in commission =)
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Moneymaker
Administrator Posts: 11493
From: Lyons, IL, USA
Registered: May 99
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posted 03-06-2001 12:17 AM
Maybe nothing. It depends on the duration and centerline that it is ground on.  ------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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kid vishus
Gearhead Posts: 1994
From: huh?? what? who? ME!?!?!?!
Registered: Oct 2000
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posted 03-06-2001 06:47 AM
I would clay it up first. The only time I have ever had problems with valve to piston on my C's was in a motor that we cut .055 off the heads and zero decked the block and that was with a .650 lift roller cam with 264 @ .050 on the intake, the exhaust still cleared. And that was with a domed piston.
Unless you have a a cam with some really radical duration numbers and a really strange centerline, I wouldn't worry much about it, clay it up to check it, and you will probably find you have plenty of room.
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MrWesson22
Gearhead Posts: 610
From: Dacula, GA
Registered: Sep 2000
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posted 03-06-2001 07:51 AM
Sweet! I'm not sure about all the numbers yet as a friend is working out the specs for a custom grind for me. That would be fabulous if I didn't have to mess with any of that stuff to gain more clearance.------------------
Neal
Member #723 (M&M rookie)
[email protected] AIM: MrWesson22 69 Gulfstream Aqua Grande
351C/Toploader 4sp
back in commission =)
IP: Logged |
Moneymaker
Administrator Posts: 11493
From: Lyons, IL, USA
Registered: May 99
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posted 03-06-2001 02:09 PM
There ya go!  ------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
IP: Logged |
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