Project mixed up boss, initial dyno results

[Joey120373]

https://youtu.be/nowlJhzj9Jo

Been following this build for a while. For those who don’t know, there is a guy ( can’t remember his name at the moment ) who worked for Kasse ( might still work for him, dunno ) , who designed a set of
Boss 9 type heads for the SBF Windsor ( and they fit the LS motors as well ).

Hammer head cylinder heads.

This guy put together a pump gas 429 cubic inch sbf, and is getting it tuned up on the dyno.
Initial dyno results look promising. Looks like he is aiming for 1.6 hp per cube, or 700 hp at 7000 rpm.
He is close now, but looks like mixture distribution is hurting it.

Would be interesting to see a comparison of a similar stroker motor with a set of the big AFR OR TF heads, my guess is that they would be pretty close. The hemi heads might get to a given HP at a lower rpm, or maybe not.

Regardless, that’s probably the sexiest motor I have seen in a long time.

[gregaba]

That was interesting. It would be nice if I could afford a weeks dyno time.
I like the motor.
Greg

[thatdarncat]

I saw those SBF Boss 429 style heads sometime after they were introduced a few years ago when we were at the PRI show, I forget what year. Somewhere I have a flyer from then. Since that time I’ve seen a couple builds with them on the internet.

[machoneman]

Very cool heads indeed! I wonder how that engine would fit in a shock tower car w/o cutting up the inner fender wells.

[Joey120373]

Very cool heads indeed! I wonder how that engine would fit in a shock tower car w/o cutting up the inner fender wells.

ive wondered the same thing. those heads would be a tad on the overkill side on an 8.2 inch block, but I sure want to see one