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Edsdelta · 07-16-2004, 10:24 PM

A user sent me this digital pic of their B body 425ci Olds (I think it was a 1966 Ninety-Eight) with an OEM exhaust "block-off plate" of sort. I've seen these on eBay too.

I agree that there would be a "pressure pocket" created by the stock driver side manifold if the Y-pipe were to be sealed off.

The Y pipe that runs under the oil pan is a huge downside, i.e. the engine temp and lifespan.. super-heated oil is the last thing you need on a bigblock hitting high RPM. I've read about paiting that pipe with white paint.. which I doubt makes any significant changes in temp.

I can see how moving the engine up 1 inch would benefit the process. Did you notice any differnce in front-end handling? I would think it could affect the center of gravity.. maybe not?

[ July 17, 2004: Message edited by: Edsdelta ]</p>

07-16-2004, 10:24 PM	#3 (permalink)
Edsdelta Member Join Date: Dec 2001 Location: Maine, USA Posts: 89	A user sent me this digital pic of their B body 425ci Olds (I think it was a 1966 Ninety-Eight) with an OEM exhaust "block-off plate" of sort. I've seen these on eBay too. I agree that there would be a "pressure pocket" created by the stock driver side manifold if the Y-pipe were to be sealed off. The Y pipe that runs under the oil pan is a huge downside, i.e. the engine temp and lifespan.. super-heated oil is the last thing you need on a bigblock hitting high RPM. I've read about paiting that pipe with white paint.. which I doubt makes any significant changes in temp. I can see how moving the engine up 1 inch would benefit the process. Did you notice any differnce in front-end handling? I would think it could affect the center of gravity.. maybe not? [ July 17, 2004: Message edited by: Edsdelta ]</p>