This cylinder head package has been proven over many years, from experiences with customer cars and our personal vehicles running up to and beyond 700whp.

• GSC valve springs and retainers retainers
• GSC valve guides
• GSC Viton valve guide seals
• Performance valve job
• Head cleaned and resurfaced
• Valve lash adjustment

Popular add-ons are BILLET CAMSHAFTS and OVERSIZED VALVES.

Gen3/4/5 must send in a head in advance - sometimes we have these available, email us.

These are built to order, assume a 3 month wait. We try to keep the popular configurations in stock - email us to check.

You may send in a Gen2 head for a $200 refund. Must include all cam caps, buckets, and shims.