Used as a set 4235-2IN and 4236-2EX provide the best peak torque and a good overall power band. Stock valve springs are OK. Decompression mechanism is included.
Confirm the exact year, make, model and trim before ordering. Send us SKU 870099 with your vehicle info and we can help verify fitment.
Shipping services and final delivery cost are shown at checkout. Returns are confirmed before an RMA is issued — parts generally need to be uninstalled, unused and in original packaging. Full policy.
