Cooling a 347

[Scrapla]

I wanna buy a new water pump and some dress up parts for my new engine which is a 347 but very mild not to crazy just had a great deal on a 347 block but installed gt40p heads and 65mm TB, get the idea anyways I was looking into getting a chrome OEM water pump from jegs along with all new hoses, does this sound good?

[PWR_RYD93]

That should be fine. I honestly don't think the stock water pump is the weak link in the cooling system.... it's the puny stock 2 core radiator.

[jonnyk]

I agree. Summit has some really cheap (around $180) 31x19 2 core aluminum rads that would solve all of your cooling problems. I have the Griffin 31x19 and my cooling capacity increased a TON, still with a stock water pump, fan and underdrives.

[drudis]

Ditto on ther puny radiator.
I stuck in a Griffin generic NASCAR-series (took some modifying of brackets). But that thing just palin old rocks!

See my Engine link for install write-up.

[Scrapla]

Well I live by the steeda factory down here and I got one they use, which I belive is 3 row and much bigger then stock, its less then a year old.

[Dark_5.0]

Any auto parts store will carry a 3 core replacement for your 2 core. Mine costed 150 bux from autozone.

[fiveohpatrol]

my underdriven stock replacement water pump keeps my car perfectly cool even on the hottest days

I've got a 18" electric fan and a 3row brass pep boys radiator, and a 180* thermostat

btw, its also a 347 with P heads


-Drew

[Dark_5.0]

I always wonderd why your car was so fast. Now I see, its a 347.

[fiveohpatrol]

hehe, yeah

although it should be atleast .2-.3 faster as it sits. My T-5 is falling apart, and I can't powershift it. Suspension needs a little attention too.

I'm going to be rebuilding the tranny, and adding some adjustable upper control arms to help launching some. (pinion angle right now is about 6 degree's too high!)

then its time to spray my way into the 10's

[stang_racer20]

Originally posted by jonnyk
I agree. Summit has some really cheap (around $180) 31x19 2 core aluminum rads that would solve all of your cooling problems. I have the Griffin 31x19 and my cooling capacity increased a TON, still with a stock water pump, fan and underdrives.

Hell yeah it cools better. I've also got the Griffin Aluminum 31 x 19, 2-Core Manual Radiator(Iv'e got a sepaerate trans cooler) on my 347. The first time I started my new motor w/ a 185 stat its sat at 160 degrees forever after the stat opened w/ a new autometer gauge. I think the radiator was only like $190 too! Definitely go aluminum!