Stage 1: single-cam motor. Excellent bottom-end and midrange increase. Improved throttle response. Uses stock auto-decompression mechanism. Uses stock valve springs.
Confirm the exact year, make, model and trim before ordering. Send us SKU 870231 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.
