0HinsonSuperCars

We just picked up a large shipment of these rockers, so they're in stock ready to ship!

Yella Terra Ultralite Rockers LS1/LS2 $445 shipped
Part# YT 6645

Yella Terra Ultralite Rockers LS3 $485 shipped
Part# YT 6667

Yella Terra Ultralite Rockers LS7 $645 shipped
Part# YT 6670


Why Yella Terra Rockers?

Reduced valve guide and seat wear
The traditional metal tip on standard rockers literally drags across the valve tip as the rocker opens and closes causing high side loading on the valve. This inside force leads to irregular and rapid valve, valve guide and valve seat wear in many engines. The roller tip on Yella Terra roller rockers eliminates this side loading action, as a result engines rev quicker and freer with a crisper exhaust note and maintains peak efficiency longer.

Reduced friction
The use of needle roller bearings at the rocker fulcrum combined with a roller tip at the valve greatly reduces horsepower robbing friction in the valve train.

Component strength
Yella Terra aircraft quality extruded arms are the strongest made and are matched to massive ground trunions for superior durability to other brands. Oversize needle roller bearings are used for better load distribution. Yella Terra uses premium quality materials, carefully controlled heat treatment and precision grinding and finishes. This ensures reliability, minimum friction and long life.

The Highlander

Do you have any gains with this? Sure you must have tested them?

Thanks

0HinsonSuperCars

In valvetrain longevity, yes. With horsepower, no. Unless you go with the 1.8 ratio.

Thanks

Wicked99

I have a set of stage 2 P&P L92 heads. im looking to get some of the LS3 1.8s. Will i need to get new push rods to make these work? or are they a direct swap?

Thanks Eric

0HinsonSuperCars

The Yella Terra rockers typically require a .050" longer pushrod. Measuring pushrod length is required.

Thanks!

STLSPARKY

how much lift is gained when going from stock 1.7ratio to 1.8?
would I need longer pushrods still, i have brand new 7.4 rods for my milled .010 243 heads, with 226/230 598/.608 EPS grind comp cam. also would 1.8 ratio cause me any PTV issue on my stock LS1 bottom end?
thanks,
Ryan

0HinsonSuperCars

.598/.608 turns into .634/.643. They typically require a .050" longer pushrod. Measuring pushrod length is required. You shouldn't have a PTV clearance issue.

Thanks

REDZED2

Dunb question.. but do these YT's come with rocker bolts or do you have to use the factory 8mm ones?
Im gonna need a set and a pushrod length checker.
Thanks

0HinsonSuperCars

Yes, they come with bolts. Just let us know when you're ready.

Thanks

0HinsonSuperCars

Thanks for your orders!