99GreenGT

are 03 cobra and mach 1 heads the same as navigater heads?

DOHC

03/04 cobra, Mach 1, Navigater, all the same head. 05' Cobra revised head is the best.

99GreenGT

there isn't an 05' cobra is there?

DOHC

No. But Revised 03/04 cobra heads that they call 05' heads. They have better cooling and more sparkplug threads. The so called tick fix.

99GreenGT

where can i find them?

DOHC

http://www.directfordparts.com/partl...0&items=10
Do same research. The FR500 heads flow good but are not ment for boosted cars due to less cooling. Lot of 03/04 cobra owners have been fooled into using these heads. Many feel the ported 05 heads are the best. The FORD GT heads fit to but I beleve require extra work.

DOHC

sorry. Left head part # 2C5Z6049BAB, Right head # 2C5Z6049CAB

99GreenGT

thanks