Complete assembly ready to bolt on. Select desired rocker ratio.
Installation of high ratio rockers will increase your net valve lift. Check your valve spring capacity before installation. For best cam life, keep valve spring pressures as low as possible but strong enough to avoid valve float.
Using 1.65:1 ratio rockers with 3/8″ diameter push rods may cause interference between the push rod and the push rod tube in the head.
Longer push rods may be required if the head has not been shaved to increase compression.
TR2-4 rockers do not fit under the original rocker cover. An after-market aluminum rocker cover or a Rocker Cover Spacer (SKU 33) is required.