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May 11, 2007 | 10:55 PM

k-mart

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Cam suggestions?

I've been trying to read up as much as possible on cam selection but I haven't really found what I'm looking for. Mods will be a set of 241's with dual springs, LS6 intake, TSP long tubes, no cats, ported/polished TB.

I'm not looking for a screamer at the track but its not a DD so driveability isn't too critical. I want a broad power band with good torque and a mean sounding idle. I'm thinking about something along the lines of a low 230's duration with lift a bit over .600 lift and 110-112 LSA. Any ideas?

I was also thinking about milling the heads down a bit to raise compression. If I do, how much and what length pushrods would work well?

Thanks in advance.

Kevin

May 12, 2007 | 07:51 AM

Patrick G

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Quote:

Originally Posted by k-mart

I'm thinking about something along the lines of a low 230's duration with lift a bit over .600 lift and 110-112 LSA. Any ideas?

Bingo, you've answered your own question. Find a cam in the low 230s (preferable a single pattern), around .600" lift and keep the LSA between 110-112 (don't forget +4 advance with stock heads). There are some nice customs that fit this bill and certainly a few shelf cams that fall into this range as well.

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May 12, 2007 | 09:16 AM

JPH

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224/228 .585/.585 112+4 will surfice very well for your application. i would advise more engine work, heads, compression, etc... for 230+ duration camshafts.

May 12, 2007 | 12:47 PM

k-mart

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Quote:

Originally Posted by Patrick G

Thanks, Patrick. Something along the lines of the F12 should work well, then? I'm thinking about a custom grind like so, 230/230" .60X" or .61X" 110+4 LSA.

Would you advise milling the heads down a little? Maybe .030"? If I do, will I need slightly shorter pushrods too?

May 12, 2007 | 02:22 PM

Patrick G

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You will need longer pushrods than stock if you run stock chamber size and gasket thickness. If you mill and run a .040" gasket, you may get by with 7.400" pushrods.

If you go over 11.0:1, you won't need to advance the cam +4. Maybe +2.

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May 13, 2007 | 11:49 PM

k-mart

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I found a 230/234 .595/.585" 112LSA (I think its +4.) for a good price. I'm thinking that the money saved by going with it will free up cash for a .040" gasket. How's that sound?

May 14, 2007 | 06:45 PM

k-mart

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May 14, 2007 | 08:36 PM

Patrick G

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Quote:

Originally Posted by k-mart

I found a 230/234 .595/.585" 112LSA (I think its +4.) for a good price. I'm thinking that the money saved by going with it will free up cash for a .040" gasket. How's that sound?

As long as the lobes look smooth and pretty, I'd say you've found your cam. The thinner gasket is a smart move for torque too.

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May 14, 2007 | 08:41 PM

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k-mart

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Originally Posted by Patrick G

As long as the lobes look smooth and pretty, I'd say you've found your cam. The thinner gasket is a smart move for torque too.

After some research I found that stock head gaskets compress down to the .050-.052" range. Would it be possible to mill the heads an extra .010" down to .040" and achieve similar results to the thinner gasket? I realize that the quench won't be improved, but chamber size should be close. Or would this cause me to need to flycut negating any $ savings by going with stock gaskets?