[Nicks67GTO]

Originally Posted by hgerhardt

And that's why I love oil-to-water coolers like they used on 4th gen TA's with manual trans and C4 Corvettes.



On a cold start, the water heats faster than the oil which causes the cooler to actually warm the oil. After warmup, it's the opposite situation.



Below is the setup on my '66 GTO. It's a C4 Corvette unit (made by Modine) attached to a 90deg adapter via a simple adapter plate on a Firebird long-branch adapter. The hoses connect to the heater nipple on the RH head (although mine takes water from both heads) and then to the heater core. The switch (used to) control the electric fuel pump and also turn on an oil pressure idiot light (with rally gauges and solid rollers, you can't hear/easily notice if there's low oil pressure). This cooler also allows (forces?) the use of SBC oil filters. Unfortunately, with Doug's headers I have to use a shorter filter than that PF-35L (it worked well with H-O Racing's Tri-Y headers). If you want a CAD file of the adapter plate, shoot me a PM.

Tell me more. I'll definately take a copy of that cad file if you're offering. Does this interfere with the bell housing or headers at all? Do you have any pics of it installed? I added an oil temp gauge to my speedhut cluster this year and I'm going to monitor it closely while racing. I ran a hill climb with my 67 gto last year where revs were 4-6500 rpm for a lot of it and I think my oil was getting hot.

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