dohc block with a sohc head

518kyle863 · Post by **518kyle863** » Sun Oct 09, 2011 8:56 pm

I built a 95 neon with a dohc block with a 03 r/t sohc head I shaved the head 40 an I got spark an got gas an the timing is dead on here's the mods I have in it #14 cam with a sohc mopar pcm under drive pulley long tube headers 60mm tb but I can't get it started it turns over nice has spark gas an timing is dead on but my coprtion is only 85 pis I need help if any one has any good tips with the set up that i have it should be about 11.16.1 compression witch should push way over 200 psi if any one can help me out that would be good thanx

jamieely · Post by **jamieely** » Sun Oct 09, 2011 10:02 pm

Sounds like bent valves. Odd for a head gasket to leak evenly across all 4 cylinders. I have dohc pistons with an unshaved head and had 235, 230, 230, 235 psi when we checked mine last spring. .040 is a lot to take off when running dohc pistons, especially if you didn't file the dome but I have heard it done without issue. I am getting ready to install a Crane 007 and the guy that did my head recommended I not mill .040 off the head with dohc pistons even though people have. 007 has the same lift as the 14 but more duration. Has it ran at all?

1genRTturbo · Post by **1genRTturbo** » Sun Oct 09, 2011 10:25 pm

holy spell check batman... of coarse, like im one to talk... if im right, the dohc pcm wont work with a magnum head will it?

jamieely · Post by **jamieely** » Sun Oct 09, 2011 11:59 pm

Dohc pcm will work fine with a mag head. Sensors all work the same.

518kyle863 · Post by **518kyle863** » Mon Oct 10, 2011 2:40 pm

no it has not ran yet an its a sohc pcm not a dohc an i turned it over like 5 time by hand be for i turned it on i dont now how i would of bent all the valves like that ..every cylinder has like 85 psi

518kyle863 · Post by **518kyle863** » Mon Oct 10, 2011 2:41 pm

i was thinking the valve timing was off so i just got a aem cam gear im going to try that after i try a down leak test

jamieely · Post by **jamieely** » Mon Oct 10, 2011 9:50 pm

If the valve timing was off that far you may have some issues. Good luck. I am keping my fingers crossed for ya lol.

518kyle863 · Post by **518kyle863** » Mon Oct 10, 2011 10:22 pm

lol thanx ill let every one on what happens this weekend when i get time to play with it