LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Comp 268xfi hr-13 cam

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Old 03-18-2009, 02:12 PM
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Default Comp 268xfi hr-13 cam

Anyone on here running it in a stock lt-1?

What do u think of it?

Is a comp 918 spring enough for it?

Will a 918 spring work on a stock head without machining?

Please help.

Thanks,
Dale
Old 03-18-2009, 02:27 PM
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That's a mild street grind:
218/224 .570"/.565" 113 (w/ 1.6 rr's)

It will work well with stock heads and will be a good midrange cam with decent top end.

How much horsepower are you looking to make?

Comp 918 springs will be sufficient and will work on stock unmodified heads. You will have to use the right locks (648-16) and retainers (787-16) though.
Old 03-18-2009, 03:12 PM
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My buddy runs that in his 6-speed Vette (BlkmagicC4). He is pleased with the cam for the most part but if he were to do it over again I think he would have gone with something else like the cc503 or a similar sized custom grind. He's running the 918 Beehives. The cam has a nice mid-range and he shifts it right around 6000ish.

When he gets back from class I will have him post up here.
Old 03-18-2009, 03:24 PM
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Originally Posted by ss.slp.ls1
That's a mild street grind:
218/224 .570"/.565" 113 (w/ 1.6 rr's)

It will work well with stock heads and will be a good midrange cam with decent top end.

How much horsepower are you looking to make?

Comp 918 springs will be sufficient and will work on stock unmodified heads. You will have to use the right locks (648-16) and retainers (787-16) though.
Haven't really set a horsepower number in my head yet. Just have a chance to get the whole set up cheap!

Heard its good on n2o also.
Old 03-18-2009, 03:30 PM
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Originally Posted by StealthFormula
My buddy runs that in his 6-speed Vette (BlkmagicC4). He is pleased with the cam for the most part but if he were to do it over again I think he would have gone with something else like the cc503 or a similar sized custom grind. He's running the 918 Beehives. The cam has a nice mid-range and he shifts it right around 6000ish.

When he gets back from class I will have him post up here.
Awesome. Thank you.
Old 03-18-2009, 04:00 PM
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Originally Posted by SHDY 5.7
Haven't really set a horsepower number in my head yet. Just have a chance to get the whole set up cheap!

Heard its good on n2o also.
It should respond well to n2o. But I would go bigger if I were you.
Old 03-18-2009, 04:28 PM
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I plan on really going big when I rebuild. As for now,this cam may just the one I give in and buy.

What would I do without all u kind people...
Old 03-18-2009, 04:57 PM
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I had that cam in my L98 and it acts bigger than one would think. I was shifting around the 6000rpm mark based on the dyno. I think it would be a good fit for your car as long as the valve springs can handle the lift.
Old 03-18-2009, 05:03 PM
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The more I hear,the more I likey.

What about using my stock rods?

remember,im on lay-off so im broke....
Old 03-18-2009, 05:18 PM
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Originally Posted by SHDY 5.7
The more I hear,the more I likey.

What about using my stock rods?

remember,im on lay-off so im broke....
Push rods or connecting rods? I am assuming you meant push rods. I would advise against it. Any time you increase your lift, ratio of rocker, and run a stiff spring, you should get hardened pushrods. You can get Trickflow chromemoly pr's from Summit for 87 bucks.

Last edited by ss.slp.ls1; 03-18-2009 at 05:53 PM.
Old 03-18-2009, 05:47 PM
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Yes I meant push rods. Sorry about that.
Old 03-18-2009, 07:45 PM
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you should buy my cam and save your money.
Old 03-18-2009, 07:46 PM
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.269/.273
.525/.532
114 LSA
brand new. asking $150
Old 03-18-2009, 11:22 PM
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I have that cam in my 383. operating range 1800-5800 RPM and dyno shows that is right. big TQ and has very good mid range pwr.

Idles good, just enough sound to let you know something is there, passes smog with the right tune.

You WILL need 918 springs with this cam.
Old 03-19-2009, 02:38 PM
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Well I bought the cam,918 springs,comp hardened rods,1.6rr's.

Seeing as how I have a lot more to buy though,t/c,gaskets,guide plates,etc. It will be a while before it is in. I may wait and do it over the winter when I have all the other stuff I wanna do.

Do u guys think a 26 to 2800 stall would be a good converter for this cam?
Old 03-19-2009, 05:06 PM
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Originally Posted by SHDY 5.7
Well I bought the cam,918 springs,comp hardened rods,1.6rr's.

Seeing as how I have a lot more to buy though,t/c,gaskets,guide plates,etc. It will be a while before it is in. I may wait and do it over the winter when I have all the other stuff I wanna do.

Do u guys think a 26 to 2800 stall would be a good converter for this cam?
The guideplates and gaskets shouldn't be a budget breaker.

No! 3000+.
Old 03-19-2009, 05:43 PM
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Damn.
Old 03-19-2009, 06:13 PM
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I ran a Yank SS3600 stall when I had the XFI268. I also retained the convertor lock-up feature. Drives quite well around town and on the highway.
Old 03-19-2009, 09:01 PM
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That's 1 more thing on the list of "have to buy".
Old 03-19-2009, 10:03 PM
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if you're buying the cam new you might as well go custom

a LE custom cam is only $300 with shipping included vs $260 + shipping.


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