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Discussion Starter · #1 ·
I have GT40P heads now and am looking at getting a set of aluminum heads. Will I have any valve clearance issues with my X303 cam because of the
2.02/1.60 valves?
 

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did you have those valves put in ? and you might have clearance problems if your valves are 2.02/1.60 and the X does have a lot of lift.(for a motorsport cam)
 

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Discussion Starter · #3 ·
did you have those valves put in ? and you might have clearance problems if your valves are 2.02/1.60 and the X does have a lot of lift.(for a motorsport cam)
The heads I am looking at are complete with valves and springs.
 

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What heads are they?

Wouldn't recommend using the outdated X cam if you are buying a brand new set of heads.

Max lift #'s have nothing to do with PTV clearence. The piston isn't close to the valves when max lift occurs.

To answer your original question, the 2.02's with the x cam will not clear. Always measure.
 

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Discussion Starter · #5 ·
What heads are they?

Wouldn't recommend using the outdated X cam if you are buying a brand new set of heads.

Max lift #'s have nothing to do with PTV clearence. The piston isn't close to the valves when max lift occurs.

To answer your original question, the 2.02's with the x cam will not clear. Always measure.
They are ProComp Heads
Here are the specs of the heads:

210cc Intake Port
75cc Exhaust Port (Port raised .25 inch)

60cc Combustion Chamber (Higher compression than stock heads)
2.02/1.6 Super Duty Stainless Steel Valves
Dual Valve Springs 120LBS installed height, 390LBS open, .650 max lift, coil bind @ .795 lift
Chrome Moly steel race retainers
Chrome Moly steel superlocks
ProVITON extreme valve seals.
 

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They are ProComp Heads
Here are the specs of the heads:

210cc Intake Port
75cc Exhaust Port (Port raised .25 inch)

60cc Combustion Chamber (Higher compression than stock heads)
2.02/1.6 Super Duty Stainless Steel Valves
Dual Valve Springs 120LBS installed height, 390LBS open, .650 max lift, coil bind @ .795 lift
Chrome Moly steel race retainers
Chrome Moly steel superlocks
ProVITON extreme valve seals.
OH boy stay clear from those heads
 

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Discussion Starter · #8 ·

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Do a google search on procomp heads.

They are cheap chinese junk. Many many problems, poor castings, **** valve guides, the seat fall out of the head, the seats are not concentric with the valve, valves are cheap, just a bad deal.
 

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That sums it all up, don't even think about buying them.

$700 for the heads
+$800 shop cost to fix all that is wrong with them
take the $1500 and buy some good heads
 

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$800 and you can get a used set of trickflows
 

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I got my twisted wedge heads for $800, look like new............. just sayin'
 

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Discussion Starter · #15 ·

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bigger valves
better flow
less weight
easier to repair if damaged
better heat dissapation
 

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they are an over seas casting but Tri-state does the machine work and quatily control, and gives 100% quality guarantee return and get your money back.
 

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Can anyone give proof that procomp products are made in china? I've been looking and cant find any, not forum postings, but solid proof.
 
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