Oregon Camshaft
That thing should run HARD right up to the point the kegger manifold gives up, 4900 rpm or so. You need an intake badly.
Yeah but the Hughes magnum intake is pushing $1k after taxes and shipping, yikes
I’ve got the upgraded magnum Hughes springs in this car
Yep… not sure if that is kosher but seems to work . May be contributing to the valve float but the springs are definitely to light .
What hughes springs are you using?
The Hughes 1199 kit
Oregon cams is very knowledgeable. Great people to work with. All in all it took about 3.5 weeks for the entire process. 5-7 days to ship it from the east coast out west. Then when they were done, another 5-7 days to ship it back. I want to say they charged me around $200 for the service and whatever the shipping cost.
Thanks Evan. I'm outside of Sacramento so the shipping times should be half of yours.
I'll be curious what you end up with as well. I'm working on a 408 roller cam build as well. Oregon Cams recommend a new cam for my build because he said the original cores aren't made from the best material and regrinding would grind through the flame surface hardening. Because of this, he said for any regrinds on these cores, to limit spring pressure to 110 lb seat and 300 lb open. Those are pretty soft spring pressures for a roller cam.
Maybe so and I believe Ken had said that my springs (Hughes 1110 kit) were borderline. No issues with about 2000 miles. Mild cam.
I am. I installed an adjustable pushrod to check what the lifter preload is. The lifter preload with stock valve train and stock 6.900” pushrods is .080
I measured with a checking pushrod and factory pushrods were good. Post 19.
No, magnum roller lifters apparently take quite a bit of preload compared to other hydraulic lifters. They weren’t even close to plunging the lifter all the way
