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LS Engine Parts and Accessories

High Performance 1.4KW LS marine starter
Your Price:
$269.99

High Performance LS Marine Starter

620-3121

This is a "TRUE" High Performance 1.4KW LS marine starter designed for use on late model GM LS Chevrolet marine engine application including 4.8,5.3,6.0,6.2, and 7.0 Litre versions. The application has a slight off-set and uses the OE bolts for installation and features Genuine precision N.D starter motor coupled to patented design billet mount.

Technical specs:
  • Rotation CW
  • kW 1.4
  • Gearing 4.44 to 1
  • Rotatable Yes
  • Voltage 12v

USCG Approved (SAE J1171)


Holley LS Hi-Ram EFI Manifold
Your Price:
$791.99

Holley LS Hi-Ram EFI Manifold

710-300-124

Holley LS Hi-Ram EFI Manifold

  • Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67in² to 2.84 in²
  • Throttle Body Flange Location, with 92/102mm EFI Plenum Top : Height – 8.42” (from engine block lifter valley cover flange), Longitudinal Location – 3.84” (forward from engine block front flange), Angle – 25 deg. (down from vertical)
  • Plenum Top Gasket Type – 3/32” Round O-ring Cord
  • Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
  • Port Size – 2.49” Height x 1.21” Wide
  • Total Height with 92/102mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.
  • Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are NOT a consideration. Top can be mounted forward or backward. Holley EFI LS main harnesses have a map sensor connecter designed for use with an LS1/2 style map sensor. The 558-416 is an adapter harness that can be used to adapt any LS harness that uses a LS1/2 MAP sensor connection to a LS3 MAP, which is recommended for this manifold.

GM LS Series, Rear Sump Swap Oil Pan
Your Price:
$314.99

GM LS Series, Rear Sump Swap Oil Pan

740-20145

GM LS Series, Rear Sump Swap Oil Pan

Wet Sump, 5 Quart Capacity, 5'5" Deep, 8.5" Wide, 8.375" Long
Engine Application: GM LS Series
Fits: LS Engine Conversions that require a Rear Sump
1/2"-20 drain plug

  • Oil pan has a thick precision laser cut steel rail with a durable fabricated steel sump plated with a clear zinc finish
  • Fabricated, durable steel construction is more adaptable to add fittings, change finishes and weighs les than cast aluminum construction.
  • Clears 4.25" stroke with most steel rods
  • Front of the oil pan is 1.813" Deep to the beginning of the 5.5" deep sump.
  • The fabricated steel sump is 5.5" Deep, 8.5" Wide, and 8.375" Long
  • Removable anti-slosh baffle
  • Features a billet aluminum adapter that allows a 13/16" thread Moroso or OEM oil filter to be mounted in the stock location, no need to run a remote oil filter.
  • Designed to be used with Moroso 740-24050 Oil Pump Pickup
  • Magnetic drain plug and uses a stock dipstick

GM LS Series Remote Oil Filter Adapter
Your Price:
$92.99

GM LS Series Remote Oil Filter Adapter

740-23688

GM LS Series Remote Oil Filter Adapter

  • Replaces Moroso Spin-On oil filter adapter on Moroso #'s 20142, 20143 & 20151 oil pans, comes standard on Moroso # 20146 oil pan.
  • Ideal when chasis restrictions don't allow the use of block mounted filter or when a larger external filter is desires.
  • Billet aluminum construction
  • -10 AN "In" and "Out" ports
  • Includes mounting hardware and engine block sealing O-Rings

Hardin Billet Aluminum Flywheel GM (LS1-LS7)
Your Price:
$325.99

Hardin Billet Aluminum Flywheel GM (LS1-LS7)

755-8644

Hardin Billet Aluminum Flywheel GM (LS1-LS7)

Ring Gear Tooth Quantity:168-tooth, Rear Main Seal Style:1-piece, Flywheel Material:Aluminum

These precision billet aluminum flywheels deliver all of the strength and reliability that you desire with the light weight and advantages that only aluminum can provide. Lightweight Aluminum alloy flywheels can offer substantial benefits for certain situations such as light weight boats or racing boats that need rapid engine rpms instantaneously. These are recommended as replacements for factory-cast flywheels in high performance and racing applications. They're better for acceleration of heavier race boats. All Hardin flywheels are CNC-machined from certified materials.

  • Accepts Mercury couplers and heavy duty drive plates
  • Multi-point ring gear attachment
  • Light weight yet durable
  • Zero/neutral balance • 168 tooth gear
  • Bottom Mount Starter Flywheel

Hardin Steel Billet Flywheel GM (LS1-LS7)
Your Price:
$295.99

Hardin Steel Billet Flywheel GM (LS1-LS7)

755-8643

Hardin Steel Billet Flywheel GM (LS1-LS7)

Ring Gear Tooth Quantity:168-tooth, Rear Main Seal Style:1-piece, Flywheel Material:Steel

These precision steel flywheels deliver all of the strength and reliability that you need in a performance application) Cast flywheels are porous units designed for low rpm truck and industrial applications) Steel provides a shatter free strength that could mean the difference between ripping your boat in half under way. These neutrally balanced units drilled to accept popular Mercruiser high Performance couplers.

  • Accepts Mercury couplers and heavy duty drive plates
  • Multi-point ring gear attachment
  • Zero/neutral balance • 168 tooth gear
  • Bottom Mount Starter Flywheel

Power Take Off Adapter - LS1 Chevy 1310 Flexplate
Your Price:
$99.99

Power Take Off Adapter - LS1 Chevy 1310 Flexplate

500-2000

Power Take Off Adapter - LS1 Chevy 1310 Flexplate

Uses 3/8-24 bolts on 2" x 2-3/8" centers

These flanges bolt on the flywheel or flexplate and accept 1310 spicer drivelines.  There are many more available, just call us. These power take offs are needed when attaching your drive shaft to your engine.


Power Take Off Adapter - LS1 Chevy 1310 Flywheel
Your Price:
$99.99

Power Take Off Adapter - LS1 Chevy 1310 Flywheel

500-2005

Power Take Off Adapter - LS1 Chevy 1310 Flywheel

Uses 3/8-24 bolts on 2" x 2-3/8" centers

These flanges bolt on the flywheel or flexplate and accept 1310 spicer drivelines.  There are many more available, just call us. These power take offs are needed when attaching your drive shaft to your engine.


Power Take Off Adapter - LS1 Chevy 1350 Flexplate
Your Price:
$110.99

Power Take Off Adapter - LS1 Chevy 1350 Flexplate

500-2010

Power Take Off Adapter - LS1 Chevy 1350 Flexplate

Uses 7/16-20 bolts on 2-3/8" x 2-7/8" centers

These flanges bolt on the flywheel or flexplate and accept 1350 spicer drivelines.  There are many more available, just call us. These power take offs are needed when attaching your drive shaft to your engine.


Power Take Off Adapter - LS1 Chevy 1350 Flywheel
Your Price:
$110.99

Power Take Off Adapter - LS1 Chevy 1350 Flywheel

500-2015

Power Take Off Adapter - LS1 Chevy 1350 Flywheel

Uses 7/16-20 bolts on 2-3/8" x 2-7/8" centers

These flanges bolt on the flywheel or flexplate and accept 1350 spicer drivelines.  There are many more available, just call us. These power take offs are needed when attaching your drive shaft to your engine.


Rockwell 1-Piece H-Bar Driveline Spacer
Your Price:
$25.00

Rockwell 1-Piece H-Bar Driveline Spacer

500-1999

Rockwell 1-Piece H-Bar Drive line Spacer

This spacer is designed to be used with old Rockwell 1-Piece H-bar assemblies. This spacer will prevent you from needing to relocate and position your engine.

Thickness: 1/4"


LS1 14mm PTO 1310 Adapter Bolt Kit
Your Price:
$44.99

LS1 PTO 1310 Adapter Bolt Kit

500-2156

LS1 PTO 1310 Adapter Bolt Kit

This is a special metric bolt kit for 1310 LS1 PTO's.

Contains (6) M11x1.5x31 Bolts and () 7/16"x1" bolts


LS1 PTO 1350 Adapter Bolt kit
Your Price:
$44.99

LS1 PTO 1350 Adapter Bolt kit

500-2158

LS1 PTO 1350 Adapter Bolt kit

Contains (6) M11x1.5x31 Bolts and (4) 7/16"x1" bolts


Head Studs w/12-Point Nuts, SB Chevy LS1, LS6 5.7L/6.0L, 2004 Engines
Your Price:
$360.99

Head Studs w/12-Point Nuts, SB Chevy LS1, LS6 5.7L/6.0L, 2004 Engines

860-234-4317

Head Studs w/12-Point Nuts, SB Chevy LS1, LS6 5.7L/6.0L, 2004 Engines

Exact Tolerances for Perfect Alignment
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.


Head Studs w/12-Point Nuts, SB ChevyLS1, LS6 5.7L/6.0L
Your Price:
$407.99

Head Studs w/12-Point Nuts, SB ChevyLS1, LS6 5.7L/6.0L

860-234-4316

Head Studs w/12-Point Nuts, SB ChevyLS1, LS6 5.7L/6.0L

Exact Tolerances for Perfect Alignment
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.


Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2003 & Earlier)
Your Price:
$208.99

Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2003 & Earlier)

860-134-3609

Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2003 & Earlier) Hex Head

HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head re-torquing. All High Performance Series bolts are 170,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.


Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2004 & Earlier)
Your Price:
$134.99

Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2004 & Earlier)

860-134-3610

Hi-Performance Head Bolt Kit, SBC Gen III/LS Series (2004 & Earlier) w/All Same Length Bolts

HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head re-torquing. All High Performance Series bolts are 170,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.


SB Chevy LS1 pro-series hex head stud kit
Your Price:
$373.99

SB Chevy LS1 pro-series hex head stud kit

860-234-4110

SB Chevy LS1 pro-series hex head stud kit

Head Studs with Hex Nuts, SB Chevy LS1, LS6 5.7L/6.0L

Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.


LS1, LS6 5.7L & 6.0L balancer bolt kit
Your Price:
$35.99

LS1, LS6 5.7L & 6.0L balancer bolt kit

860-234-2503

LS1, LS6 5.7L & 6.0L balancer bolt kit

  • M16 x 2.0 Thread
  • 4.325" UHL
  • 1-1/16" Socket

To ensure the damper is locked into place, use these ultra-strong 200,000 psi bolts that exert maximum clamping force. Special features include 1/4" thick washers with an extra wide surface and tall 12-point heads that accept a deep socket to end the worry of stripping the head.


SB Chevy LS1 hi-perf Cracked Rod
Your Price:
$108.99

SB Chevy LS1 hi-perf Cracked Rod

860-134-6006

SB Chevy LS1 hi-perf Cracked Rod

These are undeniably the strongest, most reliable OEM-replacement rod bolts available! Forged from 8740 chrome moly, you are guaranteed maximum durability, especially when combined with 's innovative manufacturing technology. Choose from new Wave-Loc or standard knurled design. 190,000 psi.