cam rpm range on stroker
The reason I give the heads star status. Its ultimately gonna set the stage. How much hp we can make and at what rpm for a given displacement and give the cam a supportive role because its either gonna allow us to take full advantage of those heads or some fraction of the power and rpm available. Obviously with intake/exhaust cr etc.. rounding out the duties.
I was about to hit the Disagree button, but had a quick change of heart.
I agree and this is why.
340-9.4:1 compression-.474/280 purple cam.
Stock 360 (1.88/1.60) Power fell off at 5800 rpm. Dropped a valve(my own stupidity) had to replace 340 and had to have one hardened intake seat and all the exh's got hardened seats.
These seats left a big lip that i ground down all the way into the bowl. Opened up the exh exit as well(not a good idea!)
Had one intake hardened seat with a big ski jump at the bottom of the hardened seat. Ground it out, made templet to make all the intake bowls the same, did some clean up in the port and installed them on the short block.
Nothing changed but the heads!
Top rpm when from 5800 to 7000!! Same cam degreed in the same, same compression.
Replaced the head because it killed the lower end(like a big cam would do) and slowed down my et by a full sec.
The launch was like gramps in a easy chair, then about 60 foot out, it would take off like a 2 stroke on the pipe.
So yeah i agree, the head can be the " Star"
