Mechanical Roller Lifters - Big Block Chrysler (383-440) Pushrod Seat:Intake Offset .210 L&R 13 Brand Holley EFI Depth

13 Brand Holley EFI Depth 1" Emission Code 5 Height 4

We put a pair of these NLX 83mm turbos onto one of our 427ci LS Next builds to act as the centerpiece of the Dart booth at PRI 2016

All Pro owner Bob Williams on HIPS (Hot Isostatic Pressing) processing and All Pro head design

We are not fans of the excessive lightening we see on other billet blocks

Extensive amount of inputs and outputs allow for limitless combination of options

Mechanical Roller Lifters - Big Block Chrysler (383-440) Pushrod Seat:Intake Offset .210 L&R 13 Brand Holley EFI DepthBig Block Chrysler . 904" Diameter Mechanical Roller Lifter (383 440) Borowski Race Engine's lifters Feature 4 column design for ultimate strength and rigidity while minimizing mass. Deep roller bearing pocket provides maximum roller bearing shrouding, maximizing rigidity and thrust surface area with smooth rounded edges that minimize lifter bore wear. Made in the USA. Triple Alloy Steel Billet Lifter Bodies machined on state of the art CNC equipment.