LT1 DIRECT INJECTED GM CYLINDER HEADS CNC PORTED FOR LT1 6.2 BLOCKS GRADE 3

Part Number: GM-12620544-CNC-ASSY-G3

Price: $2,299.99

Quantity:

LT1 DIRECT INJECTED GM CYLINDER HEADS CNC PORTED FOR LT1 6.2 BLOCKS GRADE 3 Product Description:

Overview

GM factory cast re-manufactured cylinder heads for the GM LT1 6.2L series engine block, these heads come assembled with a choice of three different valve configurations.

Grade 3:

New Manley Pro Flo/Severe Duty Intake Valves.
New Manley Extreme Duty Exhaust Valves.

Features:

CNC Ported.
CNC Valve job.
New Viton seals.
New Manley Pro Flo/Severe Duty Intake Valves.
New Manley Extreme Duty Exhaust Valves.
New Manley Nextek Series Valve Springs.

NO CORE CHARGE!!!

Specifications

Manley Pro Flo/Severe Duty Intake Valves:

Brand:		Manley Performance Products
Part Numbers:		MAN-12352-8
Other Part Number:		12352-8
Part Type:		Valves
Valve Type:		Intake
Head Diameter (in):		2.120"
Stem Diameter (in):		.3133"
Installed Height:		Stock
O/A Length (in):		5.253"
Tip Length (in):		.170"
Underhead Angle/Radius (deg/in):		Pro Flo 12° x 3/8"
Margin (in):		.050"
Seat Width (in):		.70"
Top of Head (deg):		7° Dish
Valve Back Cut (in/deg):		.075" x 30°
Valve Material:		NK-842 stainless steel
Valve Weight (Gms):		124
Quantity:		Sold as a set of 8.
In Store Pickup:		Colton, CA, USA

Manley Extreme Duty Exhaust Valves:

Brand:		Manley Performance Products
Part Numbers:		MAN-12349-8
Other Part Number:		12349-8
Part Type:		Valves
Valve Type:		Exhaust
Head Diameter (in):		1.590"
Stem Diameter (in):		.3136"
Installed Height:		Stock
O/A Length (in):		5.205"
Tip Length (in):		.160"
Underhead Angle/Radius (deg/in):		25° x 7/16"
Margin (in):		.075"
Seat Width (in):		.100"
Top of Head (deg):		18° Dish
Valve Back Cut (in/deg):		.075" x 30°
Valve Material:		XH-432 Xtreme Alloy
Valve Weight (Gms):		102
Quantity:		Sold as a set of 8.
In Store Pickup:		Colton, CA, USA

Manley Nextek Series Valve Springs .660 Lift:

Brand:		Manley Performance Products
Part Numbers:		MAN-221436-16
Other Part Number:		221436-16
Part Type:		Valve Springs
Valve Spring Style:		Standard
Number of Springs Per Valve:		Dual
Outside Diameter of Outer Spring (in.):		1.295"
Inside Diameter of Inner Spring (in.):		0.676"
Spring Rate (lbs./in.):		379 lbs./in.
Coil Bind Height (in.):		1.100"
Damper Spring Included:		No
Valve Springs Coated:		No
Wgt/Grams:		93
Quantity:		Sold as a set of 16.
In Store Pickup:		Colton, CA, USA

Application

GM LT1 6.2L style engine block.

Suggested Parts

Warranty

This product, due to it`s intended use, is sold without warranty.

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