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XfireZ51 · 02-12-2014

I agree w you there Mike. As an FYI, my stock block uses 1 7/8" primary tube Watson headers. Not sure the collector is even 3" but it all dumps into 3" pipes, no cats, from there to the 2 outlet DynoMax muffs. My torque peak, 402SAErwtq/411 actual, peaks at 5200rpm. Of course we are talking about a stock block 5.7L but ported heads, TB, and top end using both intake and exhaust cams. I think the "lack" of low end torque has more to do w the characteristics of 4V motors and less to do w the exhaust system diameter. For me, I'd rather trade that low end grunt for what happens once the car gets beyond the 1/8th mile.

02-12-2014	#60
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Headers & exhaust I agree w you there Mike. As an FYI, my stock block uses 1 7/8" primary tube Watson headers. Not sure the collector is even 3" but it all dumps into 3" pipes, no cats, from there to the 2 outlet DynoMax muffs. My torque peak, 402SAErwtq/411 actual, peaks at 5200rpm. Of course we are talking about a stock block 5.7L but ported heads, TB, and top end using both intake and exhaust cams. I think the "lack" of low end torque has more to do w the characteristics of 4V motors and less to do w the exhaust system diameter. For me, I'd rather trade that low end grunt for what happens once the car gets beyond the 1/8th mile. Last edited by XfireZ51; 02-12-2014 at 04:37 PM.