Cam Swap - 318/5.2L Magnum V8

Cam Swap - 318/5.2L Magnum V8 - '65 Barracuda

gwmax65 said
Thanks Abodybomber! I never found the foot note you mentioned on their site at the bottom

http://www.hughesengines.com/Index/...el2=V2hpcGxhc2ggSHlkLiBSb2xsZXI=&partid=26251

I noticed they were saying that magnum engines typically have too much cylinder pressure to run this cam... That doesn't make sense to me cause why would they make the cam in the first place and say it's designated to work in a magnum motor?

Anyways, was also wondering, you said I don't have to pull my heads, so unlike a flat tappet setup with solid lifters, am I safe to just use the hydraulic lifters as they are with this new cam? I know a flat tappet/solid lifter setup wears as a set, but didn't know about a hydraulic lifter setup.

Also, would the push rods need to be replaced with different sized ones too?

I don't understand what widening lobe centers means.. Unless you are speaking of the oval shaped cast part in the oil valley center below where the intake would sit, if that has to be opened up more for more travel for the lobes on the camshaft...

I wouldn't worry about the cylinder pressure thing,on that cam with a carb setup. Set your timing curve right,& tune it ( it does take time,on your part,B.T.W...)
Hydraulic rollers ,are actually reusable! Good to go,there mN.
I definitely would do an "adjustable push rod mockup" .. And order a correct length set. Comp Cams, sells a mock up one,for 20 bucks,beats listening to your valvetrain rattle away.( needs lifter preloaded,-.060"-090" in the ballpark.)
Widening the "lobe centers"..
Takes some of your " ratty hot rod idle " away, adds street ability /low end torque ,& mid range drivability (think 1000-4500 rpm range, where. you usually need it most..) Widening it,(110-112-114), makes less mid range, but much easier to tune. (Also why I asked about transmission/converter/rear tire size & gear ratio.) ..