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Old 12-22-2007, 11:06 AM
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Pro Comp problem

Does anyone know whats going on at Pro comp? I called the phone number listed on their web site and got a recorded message that the number was no longer in use. The number I have is 909-988-3044. My question to them was what heat range spark plug did they recommend for their PC3001 64CC head on a 383 SBC?
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Old 12-22-2007, 02:07 PM
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Maybe they offended the Red Chinese government.

What is the plug style on those heads. How do you intend to use the motor.
A few more motor details.???
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Old 12-22-2007, 02:57 PM
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Pro Comp

1. 14MM tapered seat plugs.
2. 9.6 Compression Ratio.
3. Warm hydraulic flat tappet cam.
4. 650 CC Holley double pumper carb.
5. Street cruising.
6. Hedman Hedders.

Last edited by TUFF-55; 12-22-2007 at 02:59 PM. Reason: addition
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Old 12-22-2007, 09:36 PM
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Why not try an ac delco R45TS? it's the stock heat range. If you plan on running juice I'd say try a r43ts at a 150 hit. If you do get ping or run-on after careful tuning try the 44's.
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Old 12-22-2007, 11:47 PM
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Quote:
Does anyone know whats going on at Pro comp?

No.
No ideas.
Aren't they located in China?
Are your heads assembled?
Can you post some pics of them? Close shots...
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Old 12-23-2007, 09:11 AM
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is procomp the problem or the not knowing which plugs?

14MM tapered seat plugs.

R = resistor
4 = 14 mm
5 = temp range (1 cold-9 hot, 5 stock)
T = tapered seat
S = extended tip (i think)

so you need a 45t plug, R will kill the radio interference, s as most SBC heads take the extended tip so R45TS.
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Old 12-23-2007, 02:45 PM
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If the heads call for a .460" reach plug use a R42TS. AC or RV12YC champion
if they use a .708" reach plug use a RS12Yc champion
If they use a .750" reach use a RC12YC champion
All these are 14MM plugs.
Get the plug that has the right thread reach to match the spark plug hole in the head.
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Old 12-23-2007, 03:23 PM
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a 42 is wayyy too cold for what he's doing, the plugs will foul
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Old 12-23-2007, 04:40 PM
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Procomp is located in austrailia
the parts are made in china
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Old 12-23-2007, 06:03 PM
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Quote:
Originally Posted by NXS
a 42 is wayyy too cold for what he's doing, the plugs will foul
A R42TS is just right for a moderate performance motor. A R45TS is a good plug for a low compression stock motor that sees a lot of city driving but not much WOT.
A R42TS is only slightly cooler than a "stock plug" (R45TS)
It will add a little WOT detonation protection without getting carried away. It will run clean and last a long long time as long as the ignition timing and carb jetting are dialed in properly.
This is not a race plug at all. Race plugs are much much colder. It is a "hi perf street" application heat range which is exactly what the poster has. It will not foul. It is just right. I get years out of my plugs.

Last edited by F-BIRD'88; 12-23-2007 at 06:10 PM.
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Old 12-23-2007, 07:07 PM
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The phone # I see on the web site is 909-605-1123, but I think the area code has been changed.

http://www.procompelectronics.com/ca...4bef32319f8184
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Old 12-23-2007, 07:41 PM
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Due to 50 zillion people in So. Cal the 909 area code has been split, try 951 instaed of 909.
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Old 12-23-2007, 07:42 PM
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Due to 50 zillion people in So. Cal the 909 area code has been split, try 951 instead of 909.
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Old 12-23-2007, 09:03 PM
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Quote:
Originally Posted by F-BIRD'88
A R42TS is just right for a moderate performance motor.
I searched the web for 42's and you know what I found? 25 psi...
http://www.turbobuick.com/forums/gen...look-like.html
Quote:
d0n_3d:
i use ac delco CR42TS plugs gapped at .032" which are $1.49 per plug...not sure if autozone sells these, i got mine online...autozone has the CR43TS plugs for sure i know that...i just run one range colder than that because i run really high boost on the street (almost 25 psi)



Quick6'n'-K.C.:
we both used to run 42 only for 25PSI or higher boost,
man, 42's are cold plugs, the juice/turbo type.
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Old 12-23-2007, 09:49 PM
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Quote:
Originally Posted by dawg
Procomp is located in austrailia
the parts are made in china
Not wanting to hijack thread....but can't let this go.
PROCOMP is not Australian. Neither are any of the other similar companies such as Professional Products.
Look at the results of the Engine Masters competition to see Australian products.
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