Tranny education - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DoobieBrother · 04-28-2007, 11:14 PM

I'm doing some planning for an upcoming tranny. My tranny knowledge is minimal at best. From what little I've read so far, I think I want a 700R4. Here's the question, though. Right now I have a 350 in the truck. I haven't fully decided whether that will stay and be rebuilt to be a lot more than it is now, or of if there it will eventually be replaced with a big block. I don't want to do the tranny twice. So, the question is, are the sizes and bolt patterns the same. Or if I put a 700R4 in now on this 350, will I be screwed if I turn around and do a big block for it. So same bolts, new bell housing, or some other situation all together?

04-28-2007, 11:14 PM	#1
DoobieBrother Registered User Join Date: Aug 2006 Location: US Posts: 184	Tranny education I'm doing some planning for an upcoming tranny. My tranny knowledge is minimal at best. From what little I've read so far, I think I want a 700R4. Here's the question, though. Right now I have a 350 in the truck. I haven't fully decided whether that will stay and be rebuilt to be a lot more than it is now, or of if there it will eventually be replaced with a big block. I don't want to do the tranny twice. So, the question is, are the sizes and bolt patterns the same. Or if I put a 700R4 in now on this 350, will I be screwed if I turn around and do a big block for it. So same bolts, new bell housing, or some other situation all together?



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