Please post ur 67 915 combo ,I would like to know how much compression at cc's and deck and what cam specs and et at what weight ...I am working on putting my combo togeather and cant get the compression I want ,,,thanks

Greg, (roadhazard) has your set up, runs real good.
Mick

where is it posted ,I didnt find it under his name ....!!????

rook440

I managed to get my cc's down to 69. Chambers were opened up to unshroud the valves so there was quite a bit milled from these.

I believe my piston is .005" in the hole and use a .040" gasket to get 12 to 12.2:1 with a flat top.

The rest of the combo is posted in the link
https://board.moparts.org/ubbthreads/show...amp;Search=true

915 will be around forever, cheap alum. heads will often crack and leave you out the money

The Edlebrock RPM heads flow about the same as the best ported 915 head.
By the time you pay someone to port the 915 and put the bigger valves & valve job you will end up with about the same amount of $$$ as buying a set of Edlebrock RPM heads which are 40 lbs lighter. I am not a big fan of the Edlebrocks but $$$-$$$ they are a better choice than the 915 heads. SORRY!!!

PS all these new aluminum after market heads are far better than what come on all those import cars back in the 80's.NO CRACKS

915 heads stock size stainless valves bowl ported intake and exhaust cleaned up gasket matched.2266 trw forged pistons .050 down the hole.voodo 60304 camshaft. pistons .060 over so compression about 9.5.ialso got a set of uncut 440 source heads i am using for a dakota project and ports are about same size.

Thanx for the replies ,I will use the 915 heads because I already have them from before ,they are ported and fresh ....just kicking around a couple of changes ,thanks again

There are some of us that can't use Aluminium heads, for the class rules. There are lots of places I can't truck pull competitivly and run Aluminium heads. The class I am running in requires production heads. So that means I'm stuck with 906, 915, 452.....so then the 915 is what I run.

Thats why some of us ask these questions.

Michael

Here is my combo with ported&polished 915 heads from the 80's a little different from most back then,but it made more HP than most back then.
This build was done by some Big Mopar guys back then.
"Lighten" 12-1 .125 dome Speed Pro pistons Comp-Cams R286/750 (most thought it was to big,but that is what made the engine run so well)D-C rods(not 6-pack)std 3.75 crank 8qt oil pan(a better oil pan is a must)balanced with a Weiand tunnel ram 2 4779 DP carbs with the choke towers milled of sq jetted @ 78 in the summer & 80 in the fall & spring.Most of their engines had 1050's on a M1 intake(don't know the jet size on them)and made 31 hp less. If you have or can find,borrow the old Direct-Connect book from the 70's& 80's you will find this build.
I know its now 2011 but if you want to use the 915 heads this is still one of the best combo's you can run.The only change now is you can buy some better pistons with a .125 dome and not have to lighted them.
Good Luck with the build and I hope this helps you better than my 1st post.

915 heads stainless valves stock size, ported, polished, chamber polished (80cc). SRP pistons (flat top with 6cc reliefs) .020 in hole with .020 steel shim head gasket. 10.4 compression with perfect quench. Currently running the MP .528 cam ,however there is enough clearance to run a .620 lift.

.030 over 440 with .140"(12.1cc)domes with the flat half of the piston .04 in the hole.
915 heads with 2.08" 1.74" valves,cnc ported,ports matched and cnc milled & polished chamber measured at 80 cc's.
11.5:1 CR.
8qrt. pan, 1/2" pickup with HV pump.
Harland Sharp 1.5 roller rockers.
Howards 722401 solid cam 288/290AD .517/.533lift 246/252@.05 deg at 106 with a 110 lsa.
It has a mopar M1 intake with a Race Demon 1000cfm carb.
I have a set of shorty headers and 2 1/2" exhaust.
Timing set at 22/36 all in at 2400rpm.

once again u guys are the best ....