Gen3 Performance Parts Aluminum 6.1L Based HEMI Bare Block
For race specific builds up to 3,000 HP
*Actual product may differ from photo
Block Applications: The G3PP aluminum 6.1L blocks are designed to be a direct replacement for non-VVT 6.1L/5.7L based Gen3 HEMI applications.
Block Material: Aluminum 356 aluminum alloy
Deck Height: 6.1L or 6.4L per customer preference
Block Weight Savings: 70lbs!
Deck Thickness: Solid
Cam Bearings: Cam tunnel is finish machined, bearings not included.
Main Bearings: Main bore is left undersized, to be fitted by engine builder
Main Caps: Includes billet main caps. Center 3 main caps are 6-Bolt billet. Front and rear main caps are 4-bolt billet.
Main Studs: ARP 244-5400 Included. Torque specs on main studs are not the same as iron blocks.
Lifter Bores: Standard location. Lifter bore size is standard Gen3 HEMI diameter 0.842”, can be machined to fit key-way lifter (Jesel) at an additional charge.
Cylinder Bores: 4.050” standard semi-finished bore. Cylinder bores are of a siamese design. Max Bore of this engine is 4.185".
Sleeves: Sleeves are a replaceable, centrifugal cast ductile steel pressed in with a .001” to -.002” fit. Sleeves do not protrude into the water and are considered to be a DRY sleeve.
Freeze Plugs: None required
Oil System Features: Block is set up for OE style internal oil pump or external.
Filtration: Standard Integral mount for spin on filter.
Oil Pan: Accepts OEM style Oil Pans and windage trays. As with any Gen3 HEMI it may be necessary to hand fit the oil pan gasket to ensure stroker crankshaft clearance.
Cylinder Head Bolt Holes: Head bolt holes are designed for the factory 11mm size. 1/2" available upon customer request.
Camshaft Tunnel: Made for 6.1 or 6.2L/6.4L OEM Camshaft Specs.
Note: Optional 60mm Cam Tunnel Available at additional charge.
Motor Mounts: Drilled and tapped for side mounts in OEM locations.
Bell Housing Pattern: Stock
Timing Cover: Accepts 6.1L and older non-VVT 5.7L timing covers.
Class Legal: for Ultra Street, X275, Pro275.
Gen3 Performance Blocks are NHRA Legal! Contact HHP for more info before purchasing.
Fully Manufactured in the USA!
