To anyone with a Griffen radiator, what radiator cap do you use? I tried my stock 17psi cap, but it appears to be too small. Water just pours out of the small hole into the catch can. I don't think it is long enough... any ideas?

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

well you could change radiators to fit the cap you have.

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

Kinda' remainds me of the old routine... "Raise the radiator cap, push the car from under it, push in a new car, and lower the cap."....

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Later,
Vader
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"What a Day..."
Adobe Acrobat Reader

 

JB Weld . I wish I could help you, but I'm clueless on this one.

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, Accel coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley AFPR, ported plenum,
Ruger P95DC, hot wife, new oil filter, thick rubber floormats.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

 

OK... I expected a dumbass answer from Ede... but et tu Vader! It looks like the neck of the radiator is a little too deep for the gasket to seal tightly.

It's so loose, that with the car off and cooled, I can squeeze the upper hose and hear air going inand out of that small hole in the neck! Maybe it's time to run Evans NPG

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

I have the same thing. griffin 31x19. But mine seems to stop peeing through the overflow once its warm. Now that I think about it I do add coolant all the time though maybe they make a deeper cap. Have to talk to griffin about that one.

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87z 383,afr 190's, comp hyd roller(242/248-.540/.562,114 sep),Ported and polished mini ram, 30lb inj, 3.42 gears, tremec 5spd, , 1,3/4" slp headers, speed pro bank to bank-wb02.
"Just remember children, no man can beat you once youv'e found the cliterous." 'chef'

 

i have the 31"x19" griffin rad. too. i just went to my local parts store and asked for a replacement cap for a 89 firebird...that was for the stock plastic tank p.o.s. rad. and it fit the griff. rad perfect!!just go your local parts store and ask for a REPLACEMENT rad. cap for the original plastci tank pos rad!

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89 firebird formula

356 10.5:1compression CURRENTLY DEAD!!! BEARING FAILURE!!
comp cams xe262 cam
performer rpm intake
#1405 edlebrock 600
sportsman 2 heads 64cc 2.02/1.60 valves 200cc intake runner
msd 6al
h.e.i. proform 50,000 volt vac. advance ditributor
700r-4 with 3.08 first gear and 3.23 posi 7 5/8 rear end.
b trans shift kit(will kill shifts...suck dong!!)
shorty heddman hedders with custom 3" pipe y-pipe back(no damn cat!) with 40 series flowmaster!


future mods: 406 roller REALLY REALLY REALLY RADICAL!!!!!

current engine underway..sucks not having a car!! Building the same engine but .060 over balanced and blueprinted..decided to get a little more serious this time around!!

 

The only problem with this is finding someone strong enough to hold the radiator cap, while you lift and rotate the car underneath it

 

I used a stant replacement with no probs. They have them lever-vent caps, but with the griffin it hit my hood, so I had to get the regular cap.