toeffer777

Im getting ready to do a 5.3 conversion in a 67 nova. I plan on doing a custom turbo setup also. My questions begin with should I still do a cam swap even with a turbo motor? I plan on doing springs/retainers/pushrods, but i do not know where to start looking for these parts. Anyone have suggestions for those that they were happy with.

Also for the HP theorists, is it worth the money for a new cam when I am going with a turbo? Sorry if these questions have been answered, I couldnt seem to find what the best solution would be for my application.

trever1t

iTrader: (14)

yes, the 'right' cam will definitely make a difference

turbosilvi

what kind of power are you looking to make?

LsxCody

iTrader: (3)

Definitely go with a good boost cam. What size turbo you thinking about

RandomHero

iTrader: (24)

I'll assume since you're using a 5.3L motor you're on a pretty tight budget. If so, then look around and find an 01-04 Zo6 cam and throw it in. It's a great cheap alternative and you can find them for $60-100 if you look around.

toeffer777

Im hoping for around the 450 rwhp.

Do you guys have any suggestions for valve springs/retainers.

Im assuming when I get the cam is when I should determine what pushrods I need.

ducky

iTrader: (11)

I would go with the dual springs for valve springs. I am running 12lbs of boost on my 5.3 with only comp 918 springs and 7.4 pushrods. I made close to 450: 440/411 on a stock 5.3.

1989k1500

iTrader: (23)

Just do a 02+ Z06 cam, with that and a 5.3 your capable of wayyyyy more power than what you want.

x2 on the dual springs.

With the Z06 cam you need 7.425 pushrods IIRC.

toeffer777

To vishous00 Im probably going to go with a MP70

I will have to research that a bit more, IIRC just doesnt hold up

Ok to sum it up

Comp 918 springs
What for retainers? Does comp offer these when you order the springs?
02+ zo6 cam, and the question on that would be how much hp difference would there be from a z06 cam to say a custom grind or a comp.
And 7.425 pushrods, anyone have a good experience with these from a certain vendor?

Thanks in advance.

1989k1500

iTrader: (23)

I would stay away from the 918s but its up to you.

and Im 99% sure on the pushrod length but I wouldnt want you to order them just on my word.

edit: Just searched on ls1tech and everyone says 7.425 is the length since the z06 cam has a .050 smaller base circle.