I'm going to do a XR265HR...212/218 .558/.563 115LSA cam and from what I've been reading new springs and rods are a must. I was also thinking of doing 1.8 rockers as well . My question is will the new rockers springs and rods fit under the stock covers and what recommendations for those three parts the springs, rods, and rockers?

 

BTW the engine is a LQ-9 with LT s , intake, TB and other mods with 2600 stall and 410 gears.

 

Id say some hardend 7.4 pushrods and some pac 1218 springs that are good to .600 lift and yes it will fit under the valve covers. And im not sure on the rockers i think since its a mild set up most people would say to stay with the factory rockers, imo

 

I just did pushrods and pac 1218 springs in my v-max. got the whole kit from texas speed
as a package deal. if it were me i would just use your stock rockers and save the money for other mods.

 

Thanx for the advice

 

Just installed that cam in my 4.8. I went with some hardened rods and a set of LS6 yellows I already had.

 

I would go with a PAC 1218 spring or Comp 918 spring for sure. Throw them in with a set of chromoly pushrod and you should be good. Just about every OE replacement rocker will fit under the valve cover. Just make sure you have clearance before you run it and you will be fine. On some brands, they get really tight on clearance between the back side of the rocker and the inside edge of the head itself.

Jon

 

Just do the cam, springs and pushrods. I wouldnt mess with the rockers.

 

+1, I'd go with more cam for an LQ9 also