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All Pro LS7 12-1 6 Bolt Heads

All Pro LS7 12-1 6 Bolt Heads

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All Pro LS7 12-1 6 Bolt Heads

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$3,476.00

For those looking to really make a statement, the All Pro 12-1 LS7 6-bolt head has exactly what you desire. Starting with its HIP process cured 6061 aluminum casting, the dense All Pros are designed specifically for the extreme heat and pressures today's ultra high HP street machines produce. Cut with LMEs largest (cross section) intake port, the All Pros will supply all the air your big cubic inch FI machine will demand. Standard features include bronze CHE valve guides, optimal pushrod clearance locations, and staggered 7/16" rocker stand bolt pattern.

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Description

For those looking to really make a statement, the All Pro 12-1 LS7 6-bolt head has exactly what you desire. Starting with its HIP process cured 6061 aluminum casting, the dense All Pros are designed specifically for the extreme heat and pressures today's ultra high HP street machines produce. Cut with LMEs largest (cross section) intake port, the All Pros will supply all the air your big cubic inch FI machine will demand. Standard features include bronze CHE valve guides, optimal pushrod clearance locations, and staggered 7/16" rocker stand bolt pattern.

Engine Overview

Details

## By specifying your cam lift LME will assemble your cylinder heads with the proper spring installed height. This will result in optimal spring pressures and coil bind distance for maximum performance. Please include rocker ratio to ensure acuracy. (example:  .650" lift with 1.8 ratio intake and exhaust)

 All Cylinder Heads Are Priced As ASSEMBLED Pairs  

FLOW NUMBERS WITH 4.125" BORE @ 28" WATER
LIFT .100" .200" .300" .400" .500" .600" .700"  .800"    VALVE SIZE
INTAKE  80  155  244  312  354  377  388  401    2.250"
EXHAUST  60  111 159  200 231  254  273  285    1.600"

*Flowed with radius inlet intake/no pipe exhaust

Intake Volume (cc)

280

Rocker Config.

Staggard 7/16"

Exhaust Volume (cc)

110.5

Intake Port Config.

GM LS7

Chamber Volume (cc)

68

Head Bolts/ Cyl.

6

Valve Guide Material

Bronze CHE

Valve Angle (degrees)

12° In./Ex.


LME Standard Head Porting Process

  • Clean carbon from intake exhaust and chambers (used cores)

  • Through inspection

  • Debur sharp edges

  • Valve guide clearance measured and adjusted for application

  • CNC ported intake exhaust and chambers

  • Competition valve job

  • Valve job hand blended into ports

  • Combustion chambers measured and adjusted for application

  • Meticulous final cleaning of cylinder head and components

  • Intake valves back cut with optimal angle for application

  • Heads assembled and spring pressure set up for specific cam lifts/application

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