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MY STORE LT4 HEAD PORTING SERVICE

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$92.69

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Description
Sizes
Care

LME ups the ante on the GM LT4 heads by running its CNC porting as well as guide and valve upgrades. Swapping out the factory guides and installing CHE Precision manganese bronze guides eliminates possible premature wear issues. With the new guides, GM titanium valves, and precision port work, these heads will be more than adequate at dealing with whatever punishment you may throw at your supercharged animal.

## 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 accuracy. (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"	VALVE SIZE
INTAKE	75	146	217	286	323	354	372	2.125"
EXHAUST	60	127	182	235	249	257	260	1.600"

*Flowed with radius inlet intake/no pipe exhaust

Intake Volume (cc)	320	Rocker Config.	GM LT4
Exhaust Volume (cc)	118	Intake Port Config.	GM LT4
Chamber Volume (cc)	65.5	Head Bolts/ Cyl.	4
Valve Guide Material	CHE Bronze	Valve Angle (degrees)	12° x 3° cant In. 12° x 1.5° cant 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

USD : 92.69

WASHING INSTRUCTIONS:

Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.