hp ratings

[jabba]

will 403 heads fit on the 350block

 

[dan2286]

For the heads you can go with #5,6, or 7 heads for best flow and performance. Sometimes they are not that cheap but they are better flowing than the aluminum heads that edelbrock has.

Register on Classicoldsmobile.com and let them know what you are looking for and someone should have a pair for pretty cheap.

 

[beeterolds]

will 403 heads fit on the 350block

sure theyll fit.. if you dont mind really really shitty compression.. get those heads off there!! those 3A heads use 1/2 head bolts while your block is machined for 7/16s too.. unless the previous owner installed step washers your heads arent clamped down all that effectively