LT4/383/CAMSHAFT-???????????????????
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Intermediate
Joined: Nov 2001
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From: columbus ohio
LT4/383/CAMSHAFT-???????????????????
Building a forged "383" LT4 engine and want to know what camshaft to go with ??? I still want to be able to drive it on a daily basis in the summer...but
i want as much of a camshaft possible to still be fast in the 1/4 mile.....
for the curiuos i already bought a 4340 forged crank 3.750 and 4340 5.7
forged h-beam rod's....My piston choice will prob. be forged SRP's,just in case
a small shot of nitrous is wanted later !!!!! Any advice or help would be appreciated !!!!! THANX,GUYS !!! :confused: :chevy :confused:
i want as much of a camshaft possible to still be fast in the 1/4 mile.....
for the curiuos i already bought a 4340 forged crank 3.750 and 4340 5.7
forged h-beam rod's....My piston choice will prob. be forged SRP's,just in case
a small shot of nitrous is wanted later !!!!! Any advice or help would be appreciated !!!!! THANX,GUYS !!! :confused: :chevy :confused:
Safety Car
Joined: Jun 1999
Posts: 3,570
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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Re: LT4/383/CAMSHAFT-??????????????????? (my96lt4vette)
There are lots of cams around that will work but you have to be careful about getting too much cam or the car will run poorly at low speeds and not work with the computer without major reprogramming.
The major tuners build their cars with cams with around 220 to 230 degree duration and around .525 to 550 inch lift. Lingenfelter preaches keeping the duration relatively short to build a strong torque curve.
There are Nitrous cams built by Comp Cam and others you may want to check into.
Co
The major tuners build their cars with cams with around 220 to 230 degree duration and around .525 to 550 inch lift. Lingenfelter preaches keeping the duration relatively short to build a strong torque curve.
There are Nitrous cams built by Comp Cam and others you may want to check into.
Co
Safety Car
Joined: Mar 2000
Posts: 3,620
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From: Hillsboro OR
Re: LT4/383/CAMSHAFT-??????????????????? (my96lt4vette)
I have the LT4 hot cam. Its a pretty good cam for a street motor. I have the LT4 cam right now but I am going to try a much healthier cam 234/242 112 LSA in the next few weeks. I'd suggest getting the CR ratio higher and less tight piston to head clearance if you want to go to a cam larger than the LT4 hot cam.
Safety Car
Joined: Nov 1999
Posts: 3,891
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From: Houston, TX
Re: LT4/383/CAMSHAFT-??????????????????? (my96lt4vette)
Remember, the cam will be "tamed" when you add the cubes that you are. A CC306 cam is not the same on a 396 as it is on a stock bottom.
I would go with one of our Custom Ground Cams, specifically the #6 grind. That is what we sent to NCChris and he is running over 120 trap speeds in a daily driven LT4!!! He says it idles great. Now you increase the cubes and it will be even more mild. :yesnod:
Specs are 235/242 ./532/.555.
Let me know if I can help.
Thanks,
I would go with one of our Custom Ground Cams, specifically the #6 grind. That is what we sent to NCChris and he is running over 120 trap speeds in a daily driven LT4!!! He says it idles great. Now you increase the cubes and it will be even more mild. :yesnod:
Specs are 235/242 ./532/.555.
Let me know if I can help.
Thanks,
Racer
Joined: Oct 1999
Posts: 467
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From: Lufkin tx
Re: LT4/383/CAMSHAFT-??????????????????? (my96lt4vette)
I would go with a solid roller. Something with an intake duration of 240-245 deg. and 245-250 deg on exhaust with a 112lsa (might consider a 114lsa if you are serious about nitrous). The solid roller will idle better that a hydraulic of the same duration, and will make more power. My 242/242 solid idles very well at 850rpm. The only down side is the adjustment every 5000 miles, which is not hard to do though.
Chris: I thought Ncchris was using a solid roller in his LT4? Did he change?
Chris: I thought Ncchris was using a solid roller in his LT4? Did he change?
Safety Car
Joined: Nov 1999
Posts: 3,891
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From: Houston, TX
Re: LT4/383/CAMSHAFT-??????????????????? (91tpi-zf)
Chris: I thought Ncchris was using a solid roller in his LT4? Did he change?
Melting Slicks
Joined: Apr 2000
Posts: 2,793
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From: Elizabeth City, NC
Re: LT4/383/CAMSHAFT-??????????????????? (Chris@SpeedDemon)
HJV11 has a cc306 in his 94 LT1 383. It idles well and is not a problem for a daily driver. And I have heard quite a few good things about the #6 grind from Chris at SpeedDemon. Either cam would be an excellent choice for you in my opinion.
