suggestions for 289
Hi,
Your next step is head and cam. But, if you're wanting a "spirited" street warrior, then, build for torque. It you are sticking with the 289 stroke, then heads (aluminum) no larger than 170 with a commensurate cam and TRY-Y coated headers with a carb no larger than 600 CFM. If you want more TQ & HP, stroke to 331/347, perhaps, 185 heads, cam to fit, and can still run the TRIs. But then, you'll want larger dia exhausts, perhaps, 2.5". Your carb will, most, likely need to be in the area of 650 CFM. Did I mention, you'll need "deep" pockets to fund the stroker build. Forgot to mention, you'll want to optimize your distributor operation too.
Happy Trails....
Your next step is head and cam. But, if you're wanting a "spirited" street warrior, then, build for torque. It you are sticking with the 289 stroke, then heads (aluminum) no larger than 170 with a commensurate cam and TRY-Y coated headers with a carb no larger than 600 CFM. If you want more TQ & HP, stroke to 331/347, perhaps, 185 heads, cam to fit, and can still run the TRIs. But then, you'll want larger dia exhausts, perhaps, 2.5". Your carb will, most, likely need to be in the area of 650 CFM. Did I mention, you'll need "deep" pockets to fund the stroker build. Forgot to mention, you'll want to optimize your distributor operation too.
Happy Trails....
Last edited by Ken Ashbrook; Sep 26, 2013 at 03:32 PM.
generally the reason for lower gears ( higher number ) is to allow you to run a bigger tire for more traction .. a 3.50 gear is considered lower than a 3.00 gear even though the number is larger .. it`s kind of backwards ... so the higher the number in gear ..the better the performance ..
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