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lx5091 · 03-07-2003, 03:50 PM

basically, you will have a GT40 intake setup and a 65mm tb and 67mm spacer but still have the stock E7 heads until you can get enough money for gt40's.

you may lose a little torque if you put 1 5/8" pipes on with the E7 heads.

so your question is with all the mods above which would be the better longtube pipes: 1 1/2" or 1 5/8" ?

not sure if you would really benefit from 1 5/8" tubes with regular GT40's......anybody got some numbers they could post?

03-07-2003, 03:50 PM	#6
lx5091 Registered Member Join Date: Nov 2001 Location: Fall River, MA Posts: 467	basically, you will have a GT40 intake setup and a 65mm tb and 67mm spacer but still have the stock E7 heads until you can get enough money for gt40's. you may lose a little torque if you put 1 5/8" pipes on with the E7 heads. so your question is with all the mods above which would be the better longtube pipes: 1 1/2" or 1 5/8" ? not sure if you would really benefit from 1 5/8" tubes with regular GT40's......anybody got some numbers they could post? __________________ '02 Explorer XLT 4.0L --Nice Vehicle '97 Saturn SL1--Soon to be ditched for a Ford!