Yella Terra Pro Street Roller Rockers Windsor 1.6 HYD Ratio YT5005

Yella Terra Pro Street is ideal for high revving street/strip applications. Manufactured and assembled in Australia using the highest quality materials. The Pro Street rocker arm is supported by the same hardware used in our severe race Platinum series, including massive ground trunnions that have been machined to accommodate oversize needle roller bearings. The ground finish on our trunnions offers smoother operation, lower friction and better bearing compatibility than the machined finish used with comparable products.

Compatible with Factory Heads - 221, 255, 260, 289, 302 - Carb engines (3/8” stud type head slotted pushrod holes)

Machine .300 - .320” from rocker pads.

Drill and tap 7/16” UNC.

Shaft mount rockers do not require guide plates.

Hydraulic kits are designed specifically for use with hydraulic lifters. Adjustable kits are designed for use with both hydraulic and mechanical (solid) lifters.

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

Compatible with Factory Heads - 302, 351: Carb engines (3/8” stud type head slotted pushrod holes)

Machine .300 - .320” from rocker pads.

Drill and tap 7/16” UNC.

Shaft mount rockers do not require guide plates.

Hydraulic kits are designed specifically for use with hydraulic lifters. Adjustable kits are designed for use with both hydraulic and mechanical (solid) lifters.

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

Compatible with Factory Heads - 302, 351: Carb engines (3/8” x 5/16” stepped studs)

Machine .300 - .320” from rocker pads.

Drill and tap 7/16” UNC.

Shaft mount rockers do not require guide plates.

Hydraulic kits are designed specifically for use with hydraulic lifters. Adjustable kits are designed for use with both hydraulic and mechanical (solid) lifters.

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

Compatible with Aftermarket Heads - AIR FLOW RESEARCH: Alloy Renegades 302-351, EDELBROCK: Performer 6027 - 6031, EDELBROCK: Performer RPM 6021 - 6026, EDELBROCK: Victor Jnr. 7716-7719, DART Windsor Jnr. (Iron & Alloy), FORD MOTORSPORT J302 K302, RACING HEAD SERVICE Roush 200, TRICK FLOW SPECIALTIES Twisted Wedge.

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

Requires guide plates (sold separately) use original where applicable.

Hydraulic kits are designed specifically for use with hydraulic lifters. Adjustable kits are designed for use with both hydraulic and mechanical (solid) lifters.

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