Features: Suits Factory LS7 Heads w/In-Cast Pedestals Only Includes YT 5132 Rubber Spacers 1. Being an Aussie I'm familiar with Yella Terra and their quality and at $572 they seem a pretty good deal when compared fully kitting out the heads with new studs, guide plates, rockers and a girdle. The rocker arms used on Yella Terra and Street Terra roller rockers are infinitely stronger than standard pressed steel arms providing the best in resistance to bending and breakage under high spring pressures at high RPM's. Yella Terra’s exclusive Ultralite rocker arm, shaft and pedestal system offers 50 less nose weight than the factory rocker system, the result being greater RPM potential without compromising strength or durability. This has lead me to 2 options, the Yella Terra and the Probe Industries items. YELLA TERRA LS7 ULTRALITE NON-ADJUSTABLE ROCKERS - 1.8 RATIO - YT6670. Late model engines like the Holden GEN III and Chev LS7 V8s are utilizing OEM fitted lightweight valve train components and conical springs, which are susceptible to valve float when some performance camshafts are used. It's a 20 year old 350 sbc race motor that was never used with 12.5:1 compression, 660 lift solid roller cam, 9k rev kit, ported gm iron heads, gear drive etc which we plan to spin to 7,500 rpm and run through up to 200 shot of nitrous.Īnyways we are now looking at shaft rocker systems (heads have springs and valves only) and I've been looking at the budget end of things (I'm not considering the Procomp and $200 ebay items). High Performance Roller Rockers Yella Terra.

Racingsnake440 put up a post about titanium pushrods last month and that was for a motor he's picked up for me. New to here and is my first post other than my intro.

Yella terra rockers for ls7