3500GMC
What T F, over
I've read through the tech library for this stuff, found very little.
Cylinder head talk. Flow, pre cups, casting numbers, porting etc... Doubt that anybody has bolted the variations of these heads to a real flow bench, but you never know..
We know all the different precups in the N/A and turbo engines. But what about the actual head casting? There are a few aftermarket heads out there that have been put to work with good success. How about GM castings?
A question to get things started, how does a 90-92 J code 6.2 head compare with a '93 turbo 6.5 'F' head? Pre cups are different but what about the casting?
Intake manifold bolting surface angles? Center mount turbo? Van heads? On and on.
Cylinder head talk. Flow, pre cups, casting numbers, porting etc... Doubt that anybody has bolted the variations of these heads to a real flow bench, but you never know..
We know all the different precups in the N/A and turbo engines. But what about the actual head casting? There are a few aftermarket heads out there that have been put to work with good success. How about GM castings?
A question to get things started, how does a 90-92 J code 6.2 head compare with a '93 turbo 6.5 'F' head? Pre cups are different but what about the casting?
Intake manifold bolting surface angles? Center mount turbo? Van heads? On and on.