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| Cam vs. Clearance https://www.slantsix.org/forum/viewtopic.php?t=4136 |
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| Author: | Slant Cecil [ Sat Sep 07, 2002 7:40 pm ] |
| Post subject: | Cam vs. Clearance |
For my first performance duece and a quarter slant six, I want to use the Mopar Perf. 284-.528 cam. Using cast pistons with no valve notch, how much can I cut the block and head before the valves start banging the pistons. I'd like to be able to cut a total of .200 off the block and head. If I can't get close to this number, I'll look at a different game plan. Using Mopar's formula, this cam figures to be 241@.050 duration. ceh52@quik.com |
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| Author: | Will [ Sun Sep 08, 2002 9:29 pm ] |
| Post subject: | Re: Cam vs. Clearance |
with stock rods and piston pin hight you should be able to go 100 off the head and 100 off the block easy. I ran that combo for years. Will Quote:
: For my first performance duece and a quarter : slant six, I want to use the Mopar Perf. : 284-.528 cam. Using cast pistons with no : valve notch, how much can I cut the block : and head before the valves start banging the : pistons. I'd like to be able to cut a total : of .200 off the block and head. If I can't : get close to this number, I'll look at a : different game plan. Using Mopar's formula, : this cam figures to be 241@.050 duration. slantsix@netzero.net |
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| Author: | Slant Cecil [ Mon Sep 09, 2002 11:11 am ] |
| Post subject: | Re: Cam vs. Clearance |
Thanks Will. I'll go ahead and order the cam since I can get the compression I want. When I get it I'll put it in a stock motor to make sure there's .290 clearance (.100 headcut, .100 blockcut, and .090 valve clearance). I didn't want to buy the cam, make the cuts and then find out the valves are too close to hitting. If I can get .100 block and .060 head I'll be happy. ceh52@quik.com |
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| Author: | Dart270 [ Tue Sep 10, 2002 5:49 am ] |
| Post subject: | Re: Cam vs. Clearance |
Quote:
: Thanks Will. I'll go ahead and order the cam : since I can get the compression I want. When : I get it I'll put it in a stock motor to : make sure there's .290 clearance (.100 : headcut, .100 blockcut, and .090 valve : clearance). I didn't want to buy the cam, : make the cuts and then find out the valves : are too close to hitting. If I can get .100 : block and .060 head I'll be happy. You should have no trouble with that combo. Happy building, Lou |
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