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fiveohpatrol · 11-10-2002, 11:27 PM

If you don't care about porting, then do NOT get the GT40 aluminum heads. I recently saw a flow comparison of the GT40X vs a set of ported E7 heads. The GT40's had higher PEAK flow, but average flow across the lift range was actually about the same on the 2 sets of heads. Thats not information I would want to hear if I spent that much money on those GT40's.

Why do you want to stay close to stock compression?

What sort of budget are you on?

I would check out JD's performance for a set of TFS aluminum heads. They have them for just over $900, and will KILL the GT40's.

11-10-2002, 11:27 PM	#2
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	If you don't care about porting, then do NOT get the GT40 aluminum heads. I recently saw a flow comparison of the GT40X vs a set of ported E7 heads. The GT40's had higher PEAK flow, but average flow across the lift range was actually about the same on the 2 sets of heads. Thats not information I would want to hear if I spent that much money on those GT40's. Why do you want to stay close to stock compression? What sort of budget are you on? I would check out JD's performance for a set of TFS aluminum heads. They have them for just over $900, and will KILL the GT40's. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft