SICKSS/Z28

what elso do i need beside the heads, off set rockers,L76 intake,holly tb or will any 90mm work?

and i have to have my pistons cut? at a machine shop what do i ask?

sroach20

iTrader: (31)

what pistons are you using? what cam? what engine?

SICKSS/Z28

6.0 iron block je pistons huge cam

sroach20

iTrader: (31)

flycutting depends on the cam and pistons. if the pistons are l92 style then you should be good to go (still depends on cam). any 4 bolt 90mm will work.you need to clearance the baffles in the passenger side valve cover to fit the offset rockers, unless you have really new valve covers. you need an ls3 coolant crossover line and the standard coolant plugs, i had the ls6 coolant crossover and bent it down to make the intake fit. you either need to extend your map sensor wires to fit the front of the intake or t it off the back of the intake.

SICKSS/Z28

pistons are not L92 style and cam is 25x-27x-64x-63x-112 sheet metal valve covers 4" tall

sroach20

iTrader: (31)

you will need to flycut. who is assembling the block? if you are then you will need to install the cam, degree it, and then take it to the shop to have them flycut your pistons.

mike c.

iTrader: (1)

Huge cam? do you know how the l92's work. I had a big cam 25xdur 56x lift and went to a 23x 24x and made a hugh gain in mid power and tq.

SICKSS/Z28

friend oif mine had a nice 25x cam in his L92 408 and still went 10's na at the track i have no chice but to use the parts i got now if it sucks you can say i told ya so

SICKSS/Z28

anymore info? -5 reliefs?