Why GM’s LS package?

The GM LS V8 has evolved to become a significant contender to replace the Chevy Small Block V8 (SBC) and many of its aftermarket variations. The development of variations producing significant power levels for the Corvette, Cadillac and some trucks has resulted in basic components produced in volume that can be used to build engines of even greater power at reasonable cost. The aftermarket has recognized this with a growing array of performance parts to fit these building blocks further reducing the number unique parts that need to be produced to complete a racing engine. This presents the opportunity to create a low cost, light weight, high power all-alloy engine similar to engines derived from the original Chevy Small Block.

Production

The Alternative 410 Motor group has determined a motor configuration with mandatory parts and suggested parts. The engine is required to be built with:
• Block (GM LS7)
• Cylinder head (GM LS3),
• Manifold (GM Performance Parts)
• Throttle Body (2.25” bores)
• Valve lifter (hydraulic)
• Rocker Arm (GM LS3 w/Comp Cams Trunnions);
• all aimed at keeping cost down and longevity up.

Below is a list of parts that were used in the first A4MP engine. These are suggested parts, but we realize some parts could change to make it easier on the engine builder.

PART NO.

Qty

Description

Application

Manufacturer

19213580

1

Block

LS7

GM

234-5608

1

Main Studs

All LS

ARP

MS2199H

1

Main Bearings

All LS

CLEVITE 77

SH1995S

1

CAM Bearings 2nd Design

All LS

CLEVITE 77

12585546

1

Crank Sensor

LS 2006-Up

GM

11588949

2

Block Plug (Oil)

ALL LS

GM

11609289

1

Block Plug (Water)

All LS

GM

12570326

4

Block Dowell Pin (Head)

All LS

GM

1453658

2

Block Dowell Pin (Transmission)

All LS

GM

APO317CS58X

1

Crankshaft 4.000Ó (Compstar)

All LS

Callies

12611649

0

LS7 Drysump Crankshaft

LS7

GM

CSC6125DS2A2AH

1

Connecting Rods 6.125 (Compstar)

All LS

Callies

CB663HN

8

Rod Bearings

All LS

Clevite 77

 

1

Piston Set W/Rings

 

Mahlie

3158KT

0

Timing Set 3 Bolt

All LS

Comp Cams

7106

1

DBL Roller 3 Bolt

All LS

Comp Cams

9-3172AZ

0

Timing Set 3 Bolt-C5R

All LS

Cloyes

 

1

Lifter Set

All LS

Shaver

MAN25635

16

5/16x6.350

All LS

Manley

12600936

2

LS3 Rocker Rail Support

LS3/L92

GM

12569167

8

LS3 Intake Rocker Arm

LS3/L92

GM

10214664

8

LS Centered Rocker Arm

All LS

GM

54-000-11

1

Camshaft 3 Bolt

All LS

Comp Cams

13702-KIT

1

Trunnion Upgrade Kit

All LS

Comp Cams

26926-16

1

Duel Valve Springs

All LS

Comp Cams

4695-16

1

Spring Seat Kit

All LS

Comp Cams

1779-16

1

Spring Retianer Kit

All LS

Comp Cams

240

1

Rear Drive Spud

All LS

Comp Cams

12569427

8

Intake Valve

LS3/L92

GM

12582719

8

Exhaust Valve

LS3/L92

GM

10166345

32

Valve Stem Keys

All LS

GM

234-4317

1

Head Stud Kit

Gen 4 LS

ARP

HOFHSC1066

16

Stem Seals

 

 

FEL1162L / FEL1162R

2

Head Gaskets 4.175 X .041

All LS

Fel Pro

 

1

CNC Porting

 

 

12629051

0

Bare Head

L92/LS3

GM

12610716

2

Bare Head

LSA

GM

1222-3

2

Pair Intake Gaskets

L92/LS3

Fel Pro

Covers

 

 

 

 

11515758

8

Front Cover Bolts

All LS

GM

12591720

1

Front Cover Sensor

Gen 4 LS

GM

12627501

1

Cam Sensor Wire

Gen 4 LS

GM

11588712

2

Cam Sensor Bolts

Gen 4 LS

GM

12600326

1

Front Cover – Wet Sump

Gen 4 LS

GM

12585673

1

Front Cover Seal

All LS

GM

12633904

1

Front Cover Gasket

All Wet Sump LS

GM

12633579

1

Rear Housing Kit

All LS (Ex LSX)

GM

12570471

1

Valley Cover

Gen 4 LS

GM

12570427

1

LH Valve Cover

LS2/ LS3

GM

12582224

1

RH Valve Cover

LS2/ LS3

GM

Intake

 

 

 

 

25534401

1

LS3 Carb Intake

LS3/ L92

GM

FEL1222-2

1

Intake Gasket Set

LS3/ L92

GM

12573190

8

Ignition Coil

LS2/LS7

GM

12580353

2

Coil Bracket

LS2/LS7

GM

11562426

16

Bracket Bolt

LS2/LS7

GM

12579355

2

Coil Harness

LS2/LS7

GM

89018057

8

Spark Plug Wire

All LS

GM

6012

1

Ignition Controller

58X LS

MSD

12612350

 

Oil Pan Gasket

All Wet Sump LS

GM

134-6901

1

Oil Pan Bolts

All Wet Sump LS

ARP

 

1

Dry Sump Pan

 

Olsen

9017-3

1

3-Stage Oil Pump

 

Barnes

 

1

Oil Pump Drive

 

Barnes

 

1

4500 Style 2.25 Throttle/Fuel Valve

 

DSR

 

1

Fuel Injection Lines-Set

 

Hilborn

 

1

Fuel Injection Nozzles ̵ Set

 

Hilborn

65000

1

4500 to 4150 Carb Adapter

 

Moroso

KSD 1057

1

Water Pump

 

KSE

 

1

Pump Drive Hub

 

Shaver

 

1

Cover Modifications

 

Shaver

 

1

XRP Hose Set

 

XRP

 

1

Oil Tank & Mount

 

 


Questions? E-mail Ron Shaver with your questions in writing.