Aeromotive 18021 - Fuel Pump Bladder Baffles (Set of 5) Short Blocks These All Pro LS7 cylinder

These All Pro LS7 cylinder heads come with:

5" Touch Screen LCD (PN 553-108)

150 flywheel horsepower in many street/strip applications

With their unique design

Callies Ultra Enforcer (4340 steel) I-beam rods or the lighter weight Dyers NH H-beam rods made from the stronger 300M steel alloy

Aeromotive 18021 - Fuel Pump Bladder Baffles (Set of 5) Short Blocks These All Pro LS7 cylinderP N 18021 is for the larger Phantom Bladder used in the Phantom Flex and Phantom Dual. Complementing the new Apex Phantom, Aeromotive also releases its proprietary new Phantom Bladder Baffle, which literally opens and closes the door on Phantom flow control technology. While providing a continuous, high fuel flow into the Phantom Baffle using the Apex Phantom is awesome, its critical to allow a large volume of fuel to flow into the baffle naturally