|
|
Tech Question
Josh Tracy, Kirkland, WA, 1969 Plymouth Sport Satellite
I've got the MP dual plane intake and a Holley 600 planted on top, now I am wondering if I can swap on a set of 360 heads? Will they bolt on and what else would I have to change if they do? New exhaust manifolds, any valve train issues? Stuff like that.....and what is the "gain / pain" ratio, will it be worth the trouble? Thanks, Josh
Josh-
Basically, they will bolt on. You'll lose a tad of compression depending on exactly which year heads you use. The extra flow will more than make up for the reduced CR, although the exact gain will depend on which 360 heads you use! Best are the '89-92 "308" castings, next best are the early-'70s "J" heads (which, unfortunately, do not have induction hardened valve seats.)
Doing the heads alone will be a total bolt-on, but, while you're at it, a set of hi-po 340 exhaust manfolds or headers, and a mild (but upgraded) cam, will help you get the most from the least. With some careful planning, 260 - 280 HP is pretty easy.
Rick
| Next | Index | Previous |
|---|