Will stock pushrods be OK temporarily ??
#14
.......how about the stock pushrod size issue?
Stockers are what...... 7.3-something-something? I'm running 7.4's. I think the VHP cam is happiest with 7.4's, but you may want to check with Roger and Joe on that.
I remember finding a slightly different base circle size on my VHP cam, and did some research - I think it was to put the PR's a little deeper into the lifters to help quiet valvetrain noise.
Stockers are what...... 7.3-something-something? I'm running 7.4's. I think the VHP cam is happiest with 7.4's, but you may want to check with Roger and Joe on that.
I remember finding a slightly different base circle size on my VHP cam, and did some research - I think it was to put the PR's a little deeper into the lifters to help quiet valvetrain noise.
#15
Stockers are 7.36", not significantly smaller than upgraded 7.4" rods. Although the extra .04" makes up for the slightly smaller base circle a cam with higher lift presents, he'll be okay with that cam. The only thing he might experience is slightly more sewing machine noise, but again, I doubt it with 4 thousandths of an inch difference.
#17
I hear ya, NAV...
FWIW, my VHP cam's base circle wasn't the same as the TR220 that came out of the motor. I don't remember the specs at all, but say the TR220 was 2.000 - say the stocker was 2.060.. the VHP was smaller than the stocker, but slightly bigger than the TR... somwhere like a 2.020 (definitely not exact specs, so don't bother with the math.
).
FWIW, my VHP cam's base circle wasn't the same as the TR220 that came out of the motor. I don't remember the specs at all, but say the TR220 was 2.000 - say the stocker was 2.060.. the VHP was smaller than the stocker, but slightly bigger than the TR... somwhere like a 2.020 (definitely not exact specs, so don't bother with the math.
).
#20
I thought the stockers were 7.4" and the aftermarket lengths were for those shaving the heads down.
Anyway, I agree on the stockers too. Only folks who have bent them were ones with an M6 who missed a shift and overrev'd before the limiter kicked in. Should be fine for the lower lift of that cam and in a low revving truck.
Anyway, I agree on the stockers too. Only folks who have bent them were ones with an M6 who missed a shift and overrev'd before the limiter kicked in. Should be fine for the lower lift of that cam and in a low revving truck.




