anyone know the differences of a standard 273 head 2536178 (66) and 273 commando heads 2658920
thanks ddartdude,,,,funny that I cant find any info on them,,,just the stock 66 heads,,I've had others say bigger valves,,and others say no way,,,Hey moparlee,,,I just saw your question from last year about the dual quad set-up,,,never installed it yet,,,thats actually a "65" edelbrock dual quad with the different intake angle,,,on my 65 standard 273,,,not going to put it in the 66,,,rebuilding the 66 commando motor for that one,,,,the 65 is just sitting there,,,waiting for a home
I like your Valiant MOPARLEE. Had a really nice 64 (driver) that I traded for a 64 Belvedere (project). The Belvedere is still unfinished -- after 10 years. Kind of regret getting rid of the Valiant but the Belvedere has so much more going for it.......like a 426 street wedge and a 4-speed.
Having had 2 D/Darts at the same time, I was able to gather a lot of info on the cars. Still have the race car. Don't think I'll ever part with that. Someday that'll be on the track again. I hope.......................
yeah,,,thats why I'm trying to figure out if the heads are the same,,,,thinking of putting the 65 heads on the 66 commando block and runing the dual quad,,I guess I will have to finally pull the 66 heads off and do a side by side comparison,,,,was hoping there were some "experts" on the subject here
pulled the 66 head off today,,same size valves as standard,I believe the standard heads I have are actually 64,,,came out of a 65 valiant but block has a 64 casting date
dart4 forte i have those same valve covers on my 273 commando
What ever heads are on this commando, they've been modified to fit an aluminum edelbrock LD 340 intake manifold
what dual quad intake are you running?now really up in the air,,,64-65 have smaller heart shaped combustion chamber,66 commando heads more open chamber,,,would the closed chamber bump the comp.ratio up even more than 10:5-1?
Uh...not to my knowledge.The 920 heads have 1.87 intake valves and the other one has 1.78's. The 920's were used on the w/CAP (clean air package) engines. They were also used on the D/Darts which had a version of the W/CAP engines in them.
The 920 heads have 1.87 intake valves and the other one has 1.78's. The 920's were used on the w/CAP (clean air package) engines. They were also used on the D/Darts which had a version of the W/CAP engines in them.
..necro-posting... bringing back the dead BS.