Darton Seal Tight Sleeves for 4G63 Evo DSM (300-050-SF/DF) Holley It comes with two rear

It comes with two rear main housing gaskets

Throttle Body Injection 56504 -10AN MAX FLOW 1/2" Seat EFI (40-80 PSID)

resulting in better braking performance

14 rivets and a couple more splash shield clips

That's improved throttle response that you'll appreciate immediately

Darton Seal Tight Sleeves for 4G63 Evo DSM (300-050-SF/DF) Holley It comes with two rearDarton Dry Seal Tight sleeves for 4G63T replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock. A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion. Darton sleeves must be finished at the machine shop and