Yella Terra Platinum Roller Rockers BBC 1.75 x 1.7 ADJ Ratio YT6604

Yella Terra Platinum Roller Rockers is Engineered for the most severe race applications on the planet, Platinum rockers feature “wide body” arms for even greater strength and resistance to deflection. Capable of handling open spring pressures in excess of 900lbs*, all platinum rockers feature heavy-duty 7/16” mountings for unsurpassed rocker stability. Platinum rockers are available in twin shaft versions for parallel valve applications and unique single shaft designs for canted valve cylinder heads. The Platinum range covers most popular factory and aftermarket performance heads in a choice of ratios and offsets. Compatible with Brodix 2x, 3, 4 with +.150” or longer inlet valves. Compatible with Chevy Performance Bowtie with +.150” or longer inlet valves. Compatible with Dart Iron Eagle, Pro 1, Big M 410 with +.150” or longer inlet valves. Compatible with Edelbrock Victor Jnr with +.150” or longer inlet valves. Compatible with World Products Merlin with +.150” or longer inlet valves.

EASY FIT Rockers bolt on. Fits standard mountings. No machining required.

Designed for use with both hydraulic and mechanical (solid) lifters.

Extruded from aircraft grade aluminium, perfect for dissipating excess top-end heat.

Shaft mount rockers do not require guide plates.

Drill head for pedestal aligning pin (drill align tool & pin supplied).