shawnk007

Has anyone had any proven success doing a mild DIY port job on their E7s? And is there any change by removing the hump in the exhaust port for the smog equip.?

89musclestang

trust me man not to be a dick im just sayin if you want to put any money in those heads just ditch em and go to the junkyard and get gt40 heads the e7's arent worth it

w8less

look into thumper head porting

BlessedHellride

Yes, there is performance gains to be had from a good P/P job on stock heads.

we b gpn

here ya go

http://www.thumperoforangepark.com/

w8less

the big question is though is it worth the money?

USMCrebel

mid-low 12's on 1090 from thumper or low 13's high 12's from AFR nah not worth the money.

Thumper Heads and Cam combo #1 : Thumper Ported E7s (219/155 cfm)

* Vassco springs, moley retainers and keepers
* For cams to .600 lift
* Double roller timing chain and gear set w/9 position key way
* FMS "E" ( for AOD cars), "B" , or TFS1 cam
* Instructions on installation and Cam phasing for the best power and performance for you application
* Proven 12 sec combination
* $1090.00 + 100.00 refundable core charge**

Timspony

If can port them yourself and have the equipment, I'd go for it, otherwise like stated ^^^^, get some GT40 or better heads!

mjr46

not worth it unless you are involved in class racing where you must use stock stuff in a class

w8less

speaking of stock stuff. anyone hear about tommy with jpc pass? 11.072 fastest factory stock pass in history