Re: SS Modified
 

May be a good idea to do some calculations to make sure your combo would go far enough under the SS/EM 10.00 06.50 index before undertaking the project. Are the Dart/Buick heads up to the task structurally?

Re: SS Modified
 

With a 286 dart Buick we've ran 5.85 1/8th at 120, and low 9's at 148 in the quarter in SS/DM, so yes, they can run under. Not near as quick as the new 10 degree Chevy stuff, but still respectable. We pulled 719 hp on the dyno. All with just a single disc McCleod soft loc.

Re: SS Modified
 

on a pounds per cu inch with the Buick heads you are giving an equally classed car with Chevy heads a big HP advantage--just saying--- however the Buicks always seemed to work better at higher temp and higher altitude tracks---FED 387

Re: SS Modified
 

Don't discourage the guy. If he's got a small inch motor, he should do okay with the Buick stuff. Harper used to be the man with those head and I know that Nickens did a bunch of small inch comp motors using them. I know that those heads are dinosaurs by today's standards, but depending on the class he may never have to deal with a heads up race.

What kills me is that you can pick up a used SB2 or wedge comp motor with all the best parts that makes killer power for about 25 grand. Now that's discouraging.

Re: SS Modified
 

not trying to discourage anybody just making a statement of facts---also unless I misread the rule book SS/EM is 11.5 lb p/ci so 300 is 3450 pounds min & SS/FM is 12.5 lb p/ci 3750 pounds min--- for safety sake claim 301/302 inches because of scale differences so ya gotta put another 10 pounds in the car won't make much difference in ET but you won't come up light at the scales--- FED 387

Re: SS Modified
 

Minus 5% for automatic. With a 300 inch engine, it's 3278 lbs for EM and 3563 lbs for FM.

Re: SS Modified
 

I don't think the SB2 is legal in some modified classes. A great set of GM 15 degree heads still are reasonably priced, and a bit more competitive then the dart Buick. Can they run? Sure, but don't count on winning class at Indy with them. I love them for their valve train stability, and I wasn't trying to set the world on fire. But if you want to have fun, and just enjoy a cheaper modified engine, then go for it, but put it in D mod. You can't overcome that much weight.

Re: SS Modified
 

Please cite the 5 percent rule location I obviously overlooked it. Thanx Fed 387

Re: SS Modified
 

For whatever reason they have it under weight in the frame section. Easily missed.

Re: SS Modified
 

Got it thank you thought that rule only applied to SS/ modified stock cars not modified production cars--- run a balls out old comp motor and have some fun---- FED 387