Quote:
Originally Posted by draw
Thanks! I debated porting the heads for quite a while. When I dropped the case off at Ollie's we talked about it for a bit, too. Their advice was if 36mm intakes and 35mm exhausts was good enough for the 2.7 RS then it would be good enough for my motor. When I bought the DC43x-102 cams from John Dougherty, he thought 37mm intakes would work good for my application. So, I decided to go with 37mm intakes and 35mm exhausts. Craig Garrett rebuilt the heads and did the porting.
Now, I'm prepping various parts for the rebuild. Here, a previous mechanic decided to RTV the rocker shaft nuts in. Tried several ways to get these out, but finally settled on heat from a propane torch.
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Hi Ward,
My Dad's old 74 started out with 32/35 porting and i bumped it to 37/35 after settling on DC 43-102 cams. Cgar opened it up while doing the valves and guides. Probably the same Ti retainers and springs, (aasco springs and retainers, IIRC), It didn't seem to make sense opening up the exhaust more than 35, because that is the inlet diameter of the SSI's. and the car isn't a race car.
I too had the case line bored, and the spigots trued, after line boring, 4 bar pump, bypass mod, alum PP and RSR wheel, with .050 deck, the CR was 10.3, which i was ok with - looking for engine life.
X Factory PMO intake, Megasquirt, Twin-plug EDIS - what a lot of work $$$.
Almost done, got a glitch or two in the wiring harness before it will fire - first i have to get the wife's benz head gasket fixed, (after putting in a rebuilt tranny)!!!!!
Chit, I'm 75 and running outta steam - (but still want to track the 2.8)
HAMMER down,
chris
I know the proper proceedure would have been to develop the heads and select the cam in conjunction with flow testing, but this is a bump up hot rod