fannitti

So I can get a set of mopar performance roller rockers like super dirt cheap brand new. Will they work with a stock valve core no spacer needed?

CobraMarty

If they are adjustable, you will need a spacer.
Nonadjustable fit without spacer.

fannitti

thank you so much! ill prob go with 505 performance ones. anyone know another brand thats good that will fit under stock valve cover with out a prob?

ehall

yella terra supposed to fit without spacers, but they aren't adjustable

http://store.yellaterra.com.au/jeep-...io-1-6-yt6627/

CobraMarty

YT 1.6 and 1.7(if you can find these) non-adj fit
Harland Sharp 1.6 non-adj fit

fannitti

What brand is better and why do you say if you changin them?

CobraMarty

I have them both, YT hard to find, HS available at summit/jegs/ebay.
Both work fine.

ehall

How much gain did you feel? Been thinking about it, but haven't done it

CobraMarty

1.6- smoother, quieter, slight improvement in rpm range.

1.7- big improvement, smooth, quiet, more power, extended rpm about 500rpm, instead of the engine falling flat on it's face at 4000rpm it pulls to 4500-4600. Best with 62mm TB and headers and 2.5" exhaust and free flowing intake. Acts like a mild cam, works with stock valve springs.

I had HS build me 2 sets of 1.7:1 but they are expensive, like $500/set. Easy to install, less than 2 hours.

fannitti

http://www.summitracing.com/parts/csp-s40196/overview/ these?

CobraMarty

YEP.

fannitti

Cool thanks.if I did the the mopar ones and had to get a spacer I'm guessing my cowl air intake wouldn't work because it comes over the valve cover

fannitti

Also can't find any 1.7 ones.