hey does any1 know what a stock vs 5ltr valve clearances are??? are they adjustable??
i am thinking of putting roller rockers in, wise move????
dunno, but roller rockers arnt gonna change it so go for it if you wish. As for gains i dont think your gonna see any, but it may quiten down valve noise a little and look after the top of your vavles a little better. Dont buy the ones off ebay they are just procomp crap. Yella terra or similar start from around $600. So for me i dont think im gonna bother, unless a cheap set turn up im not gonna spend the money on a new set.
Yella Terra - Part details
Dont buy any of these i listed in the first post
Anyone got info on these Rockers
I fitted a set of Y/T ST2032 i think they was from memory. Non-adjustable just bolt straight on to standard heads and no need for aftermarket rocker covers. Supposedly will add up to 5kw not from lift but from less friction and the engine does appear a little smoother. There are adjustable ones as well but didnt need these as I wasnt changing cams. If you go a bigger cam get the adjustables. The billet ones off Ebay look the biz but youd need to replace the covers with higher type to clear the rockers. The aftermarket covers off Ebay dont have baffle plates you have to fit your own. Cost of Ebay billet and covers and the stuffing around with baffles = about the cost of the Y/T ones with less hassle.
got yella terra rollers on mine and they work great, they just run a little close to the rocker covers, (but dont hit) depense on which way you want to go with your engine.
- aspirated, balanced, ported/polished, big cam, and maybe stroke
- or forced induction and stroke
i reckon value for money would be forced induction , if you can do the work yourself.
my 304 runs rollers rockers, port and polish, stage 2 crow, custom chip, 2900 stall, stage 2 shift. 165kw at the wheels
i think that if you want power there is no substitute for cubes, and your gettin that with stroking/supercharger/turbo
irekon it all depense on how much grunt you want, a little or a lot.
Think about what you want you car to eventually be and work towards it, even if it takes a while dont compromise,
If you are going to run over .500 lift and turn over 6500 rpm then sure get the rockers, if not don't
My post count was disturbing