97sierra5.0

Ive got a LOT of questions and I cant get logged on at pacificp.com so i figured i would ask yall first... here it goes.

How does this combo sound for a vortec 383 stroker?

All of these are Comp Cams products from Summit racing except the rockers they are from Proform...


Cam and Lifter kit- CCA-CL08-300-8

Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,000-5,000
Intake Duration at .050 inch Lift: 206
Exhaust Duration at .050 inch Lift: 210
Duration at .050 inch Lift: 206 int./210 exh.
Advertised Intake Duration: 262
Advertised Exhaust Duration: 264
Advertised Duration: 262 int./264 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.450 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.480 in.
Valve Lift with Factory Rocker Arm Ratio: 0.450 int./0.480 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Grind Number: 262HR-12
Computer Controlled Compatible: Yes


Valve Springs- CCA-986-16

Outside Diameter of Outer Spring (in): 1.430 in.
Installed Height: 1.750 in.
Coil Bind Height (in): 1.150 in.
Damper Spring Included: No
Spring Rate (lbs/in): 322 lbs./in.
Inside Diameter of Outer Spring (in): 1.070 in.
Inside Diameter of Inner Spring (in): 0.697 in

Seals- CCA-503-16

Valve Stem Diameter: 11/32 in.
Valve Stem Seal Type: Positive stop
Valve Stem Seal Material: TeflonŽ
Machine Work Required: Yes
Valve Guide Diameter (in): 0.530 in.

Retainers- CCA-740-16

Outside Diameter of Outer Spring (in): 1.500 in.
Retainer Material: Steel
Lock Style: 10 degree
Valve Spring Style: Standard
Retainer Style: Standard
Number of Springs Per Valve: Dual
Outside Diameter of Middle Spring (in): 1.060 in.
Inside Diameter of Inner Spring (in): 0.690 in.

Valve Locks- CCA-630-16

Valve Stem Diameter: 11/32 in.
Lock Style: 10 degree
Lock Groove Quantity: 1-groove
Lock Material: Steel alloy
Manufacturing Process: Machined
Recessed for Lash Cap: Yes
Quantity: Sold as a set of 16.
Notes: Lock set has a - 0.050 in. installed height.

Proform Roller rockers- PRO-66914

Rocker Arm Ratio: 1.5
Rocker Arm Style: Full roller
Stud Size: 3/8 in.
Rocker Arm Material: Aluminum
Self-Aligning: Yes
Rocker Arm Body Style: Narrow
Rocker Arm Nut Style: Polylock
Slot Width (in): 0.600 in.
Maximum Spring Diameter (in): 1.500 in.


Will all of this work together?

Am i wasting my time and money?

Also what length pushrods should i get for this?

Is there anything that will not work with the other components?

Sorry for the long post im just a stupid kid that knows nothin and wants massive torque and however much horsepower that comes along...No offense to anybody making big horsepower numbers(there is nothing wrong with lots of HP), but its just a number to boost ones ego IMO(and i know its important)but If ya aint got torque u aint got nothin. you know what i mean? Take my comments with a grain of salt because remember im just a stupid kid thats know nothing anyway help me out guys...

mds2004

You have more room to make your cam a little more aggressive, and everything else is fine. What type of vehicle is this going in?

97sierra5.0

1997 rcsb sierra. 4L60E trans w/Jet shift controller, 3.42's, 3.73's w/LSD coming soon. Not sure on the torque converter yet. I want a lot of torque. got any suggestions on a bigger cam?

edit: what about going with 1.6 rockers?

Grumpy5.3

iTrader: (14)

i would go with the 1.6 rockers, thats .030 more lift all the way around, price should be the same too!!!

YenkoST

iTrader: (11)

I think with a 383 I would go with a 212/218...that should make good overall power. Heck a 218/224 could work.....get the compression up about 9.8 or so though.

Oh and remember, when Comp gives their ESTIMATED RPM range....its for a 350. A 383 for the same powerband needs about 8* more on intake and exhaust. So, if you want that powerband, then for a 383 it would be 206 + 8 = 214 for the intake and 212 + 8 for exhaust is 220. Crane does make a 214/220 with about .465 lift and then I would upgrade to 1.6 rockers to make it .490 lift. Other wise, that 206/212 cam will have a powerband of idle to 4500 rpms and that's about it. Just some food for thought.

97sierra5.0

how does this Comp cam CS XR264HR-10 sound with the 1.6 rockers? im gonna have to rebuild the whole valvetrain anyway so im going to have to get everything else.. what about a set of hardened pushrods? whats the stock length for my engine?

chevyguy7802

iTrader: (3)

How many rpm do you plan on turning it?And are you putting this in a 97?

97sierra5.0

no more than 5k RPM. it wont see much racing at all. and yes its goin in my 97.

YenkoST

iTrader: (11)

If your not reving past 5k, that's an excellent cam. I would leave it on 1.5s though or 1.52s. You going to get screw in studs for your heads. I've heard that the press-in studs for the vortec heads are good till about .475 lift. You will have to find a good tuner to tune it with the 110 lsa but shouldn't be a problem.

97sierra5.0

Yes i was planning of the screw in studs. I was also looking at the stud girdles but it seems like i read somewhere that they wouldnt fit under the centerbolt valve covers? Im planning on having Charlie Wheatley tune it for me. he seems to know what he is doing. im sure he has done a tune on some kind of engine like this with a similar cam.