5/16" Double Arm - Long EN4011B31 Workshop Trolley Hex Headfits SB Chev With

Hex Headfits SB Chev With 23° Heads

for a clean look

5/16" Double Arm - Long4-1/2" Long with 5 Threaded Holes

The 5/8" idler pulley mounting bolt in not supplied with the idler pulley due to the various length requirements for different mounting applications

Available in -4 to -16 sizes in 1

5/16" Double Arm - Long EN4011B31 Workshop Trolley Hex Headfits SB Chev With5 16" Double Arm Long4 1 2" Long with 5 Threaded Holes EN4011B31 4011B31 Enderle Mechanical Fuel Injection is the standard among high horsepower drag racing engines. Available for Petrol, Methanol or Nitro fuels. Mechanical injection is most commonly used on blown alcohol engines but can also be used on non supercharged engines with our tunnel ram or throttle body style injection. Enderle mechanical injection is not commonly used on the street as it