[deepminer]

how can you identify the 66 mustang hi-performance engine,i have found one and want to be sure its the real thing

 

[cjjtulsa]

It's been a while since I messed with the 289s, but IIRC it should have "289 HP" or "289 HIPERF" or something like that cast into the heads. I could be wrong. Also look for screw in rocker studs. As for the block, I can't remember.

 

[64 TBOLT]

http://www.hipomustang.com/images/hipoeng/

 

[dfree383]

Block will have Heavier Caps, Motor will have a soild lifter cam, Exhaust manifolds will be streamlined............... Check the casting #s

 

[chris1964]

one of the easiest ways is to look for an additional "bob" weight by the harmonic balancer or you can pull a valve cover. the hipo blocks are the exact same as any other 289, but the heads have a cup for the valve springs.

 

[FEandGoingBroke]

I've seen HP and the like on 100% stock non hipo engines as often as I've seen toyotas driving down the street... Checking the csting #'s is the best and IMHOP Only way to truely know.

FE

 

[deepminer]

thanks I 'm armed with enough info to make me dangerious,But I'll be able to tell next time I go to my source