Trick Flow R-Series EFI Intake Manifolds 351 Windsor (90mm)

Trick Flow® R-Series EFI Intake Manifolds deliver a perfect balance of airflow distribution and velocity. The result is excellent low-end torque and superior horsepower. The manifolds are available in kits with a natural finish aluminum lower manifold and an aluminum upper plenum in your choice of silver powdercoat, black powdercoat, and natural finishes.

These R-Series manifolds are designed for use on non-EGR engines. Manifolds for 351 Windsor engines with a 75mm throttle body inlet produce power in the 1,500-5,500 RPM range, and 90mm throttle body applications produce power in the 2,000-7,000 RPM range.

Additional features:

*Large cross-section with 13.300 in. runners
*Overall height to the upper manifold flange is 11.500 in.
*Overall height to the lower manifold flange is 5.375 in.
*2.000 in. x 1.200 in. port size at head
*2.380 in. x 1.380 in. port size at mating flange

The upper plenums and lower manifold are also available separately.

TFS-51511006, TFS-51500006, TFS-515B00006