4 valve

Hey all - Tried to search many forums and cannot find a solution. I have a 96 cobra that has low compression on all cylinders. However - a leakdown test was performed, and each cylinder seals like it should when the crank is turned manually. Which has me guessing it’s a timing issue? I’ve seen...

Building a N/A 4.6 Dohc Does anyone know if the 2000 Navigator (5.4 dohc) Intake manifold would mount onto a 4.6 with D heads?

I have a 2003 Mach 1 that just rolled 167000. It leaks oil, has a little tick or rattle and it starting to show it's age. My question is, where can I find a new 4 valve 4.6 long block or short block. Everywhere I look it's all coyote stuff. I understand the coyote is a great motor, and I'd...

I have an 01 Cobra, 81k miles. Mods are Offroad H pipe, flowmaster 40s, K&N intake and steeda springs. I feel a very noticeable difference in performance when I have the A/C turned on (usally for the GF). Ive heard 5-10 hp drain, but somtimes it feels more like 30hp. I mean it feels like I've...