LSx Optimal Header Type
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Teching In
Joined: Apr 2007
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LSx Optimal Header Type Swap is a 6.0/4l80e in a 1968 swb Chevy truck @ 3600lbs. Stock 317's, truck intake w/ported TB, 3.73 gears, 29" tall rear tire & considering a swap to a Crane grind for low~mid range torque boost (216/224; .551/.551; 115lsa).
Truck is both for work & play (it does occassionally tow a trailer). I need to order headers & my choices would be some (all non egr):
Pacesetter LT's 1 3/4" primary
Edelbrocks 1 3/4" primary stepped to 1 7/8"; 3" collector
Doug Thorley Try-Y's 1 5/8" primary; 2" secondary; 3" collector
I know the Try-Y's shine for torque, but will the others out perform? Please educate me on what LSx engines like.
Truck is both for work & play (it does occassionally tow a trailer). I need to order headers & my choices would be some (all non egr):
Pacesetter LT's 1 3/4" primary
Edelbrocks 1 3/4" primary stepped to 1 7/8"; 3" collector
Doug Thorley Try-Y's 1 5/8" primary; 2" secondary; 3" collector
I know the Try-Y's shine for torque, but will the others out perform? Please educate me on what LSx engines like.
From the dyno comparisons ive seen tri-y's are a damn good choice in both HP and TQ levels, Horespower TV recently did a comparison and the tri-y's came out on top, If i had the money those would be my selection.
Thread Starter
Teching In
Joined: Apr 2007
Posts: 14
Likes: 0
The Try-Y's have the smaller diameter primary & I didn't want to kill any power.
