cc503 vs. hot cam
Registered User
Joined: Jun 2006
Posts: 2,092
From: lakeville, pa
i would also recommend upgrading springs with any cam upgrade, and never to lt4 springs. for the price of upgrading to a new 306 maybe you should seriously consider a custom spec'd cam.
and +1 for the convertor, that should be a big concern for you right now
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Joined: Mar 2000
Posts: 188
From: Baltimore, Md.
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Joined: Jan 2004
Posts: 2,111
From: Chesterfield Twp, MI
Are you sure you meant 2000 converter? I thought the stock LT1 converter was larger than that...
Regardless, contrary to Jake Jr's rant about bigger not being better, it's a proven fact that the CC503 vs LT4 Hot Cam is going to have the CC503 making 10-15hp more. IN THIS CASE bigger is better comparing the two CC503 and LT4 hot cam.
Regardless, contrary to Jake Jr's rant about bigger not being better, it's a proven fact that the CC503 vs LT4 Hot Cam is going to have the CC503 making 10-15hp more. IN THIS CASE bigger is better comparing the two CC503 and LT4 hot cam.
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Joined: Jun 2003
Posts: 3,557
From: Carol Stream, Il.
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Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
I suspect his comment had more to do with the age old debate on thre springs used with the LT4 hot cam kit. Being designed for the LT4 engine, which has lighter and larger valves, many people think they are marginal when installed in an LT1 or ZZ4 engine. I happen to agree with the logic but, as was mentioned before, there are tons of examples out there that work just fine....
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Joined: Jun 2006
Posts: 2,092
From: lakeville, pa
the thread is about the hot cam vs a 503, at no point in time does anyone mention the 306. his quote is referring to the difference in rpm from a hot cam to a 503, if anyone is not coming back its because of people like you larry. stay on topic and pay attention
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Joined: Feb 2003
Posts: 2,639
From: Mooresville, NC
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Joined: Mar 2000
Posts: 188
From: Baltimore, Md.
I agree. While I initially opted for the 306 back in the late winter/early spring of this year for it's bigger duration and higher lift... I ended up really wanting to gain up top for a couple of reasons. My car will be at the track, but it will be street driven 99.9999% of the time. The car already had too much low end power for the street. Couldn't hook to save my life. The top end power gains were in the back of my mind because I needed to gain more on the top end to keep up with the modded LSX's and the forced induction cars. The 306 was going to give me enough of a low end gain but the 4k+ rpm gain was the biggest thing. The 3200 stall takes away any shortcomings in the low end department. Only thing I'm wondering about it reving to 6300 on my stock bottom end.
Sorry to sidetrack the thread gentlemen. On the original subject I would run the CC503 with PAC 1518 springs. It has a minimal increase in harshness for a good bump in power. Thanks,
Larry
Last edited by VIPRETR; Dec 31, 2009 at 02:28 PM.
Registered User
Joined: Jun 2003
Posts: 3,557
From: Carol Stream, Il.
I suspect his comment had more to do with the age old debate on thre springs used with the LT4 hot cam kit. Being designed for the LT4 engine, which has lighter and larger valves, many people think they are marginal when installed in an LT1 or ZZ4 engine. I happen to agree with the logic but, as was mentioned before, there are tons of examples out there that work just fine....
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Joined: Oct 2006
Posts: 654
From: Snow Belt, PA
Actually, when recommending additional bolt-on's to compliment a 503, I made a comment about my 306 and the stall speed I used for it. He then quoted my comment and made another comment about my 306. This all goes back to the original discussion and was quite relevant to the OP's question.
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Joined: Mar 2003
Posts: 321
Looking at installing my hot cam and mildly ported stock heads over the winter,
but I have heard so many people say they had wished they had gone for a larger cam.I am not looking to build a race car,but would like the best results.The car
weighs 3750 lbs w/driver,a 3.42 gear and a 2000 stall converter and full exhaust.
I was just thinking about selling the hot cam and buying the cc503 but was wondering if it was worth it.Also emissions is a factor.Thanks
but I have heard so many people say they had wished they had gone for a larger cam.I am not looking to build a race car,but would like the best results.The car
weighs 3750 lbs w/driver,a 3.42 gear and a 2000 stall converter and full exhaust.
I was just thinking about selling the hot cam and buying the cc503 but was wondering if it was worth it.Also emissions is a factor.Thanks
Registered User
Joined: Apr 1999
Posts: 466
From: Diamondhead, MS
I bought the kit from Dal back in 97. I gave the springs to my buddy that worked at a machine shop to check them out. There was no way I was running those springs and sent them back, also sent the rockers back for some Crane Gold's. I posted what we had found on the f-body list back then and nobody could believe that GM would sell springs that were barely capable of the lifts of the HOT cam.
I'm still running the HOT cam and Crane springs to this day without any problems
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Joined: Apr 2005
Posts: 957
From: Berkley, MI
This has been discussed so many times. The fact is you need to understand what your application is and what you expect to get out of the car. IMO you need to talk with COMP's tech line to get an accurate answer.
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Joined: Aug 2005
Posts: 4,405
From: Kantuckee Yo'
If I had to do it all over again, I MIGHT re-sleeve (the guides) on my LT1 heads to use the thinner LS1 valves ASSUMING it was not an arm and a leg to do. Something just bothers me about hollow valves. I already machined my existing guides down to 1/2" so I can use any valve spring combo under the sun.