Upgrade your 3800 Non-Supercharged to a Supercharged 3800 without having to do an engine swap with this "Top Swap" kit. This kit includes everything to swap over the topend from the L67 along with the other necessary parts including gaskets to basically turn your L36 into an L67 engine. Keep in mind you will be retaining the standard 9.4:1 compression of the non-supercharged and not the 8.5:1 compression of the supercharged powerplant. This means you won't want to go as radical with pulley choice, but you will be able to make more power with less boost.
Here is the list of what exactly is included in this kit so you can see that this is in fact the cheapest Top Swap available out there. If you find a cheaper one out there, we will match it - parts for parts and price for price.
Kit Includes:

L67 Parts:

• Gen III Eaton M90 Supercharger w/ throttle body, free of rotor damage or coupler play
• lower intake manifold
• cylinder heads
• fuel rail w/ injectors
• valvecovers front and rear
• harmonic balancer
• idler pullies, brackets, tensioner, etc for supercharger belt system
• coil pack bracket w/ Ignition Control Module (if vehicle requires this for top swap)
• MAP sensor and bracket
• engine cover

NEW AC Delco Parts and Gaskets:

• vacuum harness
• supercharger gasket
• supercharger o-rings
• lower intake gaskets
• headgaskets
• headbolts
• valvecover gaskets

Other Parts:

• PCM calibrated for the top swap
• 3/8's and 5/16's fuel lines, clamps, and quick disconnect fittings
• MMS 3800 rocker bolts
• swap harness to convert Non-supercharged 3800 harness to supercharged (MAP extension, boost bypass pigtail)

Please note that while some of the components are stocked items, upgrading to ported heads or intakes would make this item a custom order.  Please refer to the Policy page for more information about Custom Orders.