dorf 351/400M ?

[MMeier]

. . anyone tell me what I should see on a cranking compression test on one of these pigs. Has a small RV cam, otherwise stock. Buddy's truck, a '79 Bronco

 

[Turbo Tim 1]

I would think stock it would be 8. 5-9. 0:1 compression ratio, so about 110-120 psi

 

[CumminsBu]

I had and 1980 Bronco with that engine. Mine was around 100 psi, so I turn it into a boat anchor. Then replaced it with a 351W.

 

[MMeier]

I had and 1980 Bronco with that engine. Mine was around 100 psi, so I turn it into a boat anchor. Then replaced it with a 351W.

Thats about what he is getting when we did a qiuck check on cylinder #2 the other night, will see him later on , see what he got on the other 7 . Cylinder #2 has a dead miss, and now with hunting season less then 2 weeks away, he is suddenly concerned!!! :-laf

 

[phloop]

I have seen Dorf the golfer, Dorf the race car driver and Dorf the Olympian, I haven't seen Dorf the 351/400m yet. Is it worth seeing? :-laf

 

[Dl5treez]

You should see about 120psi per cylinder on an excellent sealing engine..... stock that is. Usually a tired one will be at 100 or so. They're not impressive in stock form to say the least.

If you'd like to know how to get 400hp usable in a 4x4 (low/midrange) using stock Ford heads, gimme a call. Not selling service, just giving advice.


My 400M is pushing 450 with stock Ford cast iron heads.