Mast Motorsports

Mast Factory 5.3L LS 256cc/64cc 3.780 Cathedral Port Cylinder Heads - Pair w/ Valves CH-LSX-302450

PART NUMBER:

CH-LSX-302450

UPC:

MPN:

CH-LSX-302450

Availability:

Ships from Manufacturer

Type:

LS Cylinder Heads

Material:

A357-T6 Aluminum

CNC Machined Intake Runner:

No

CNC Machined Exhaust Runner:

No

CNC Machined Combustion Chamber:

No

Minimum Bore Size (in.):

3.780

Bolts Per Cylinder:

6

Assembled:

No

Intake Valve Angle (°):

11

Exhaust Valve Angle (°):

11

Intake Runner Volume (cc):

256

Exhaust Runner Volume (cc):

99

Chamber Volume (cc):

64

Intake Valve (in.):

2.040

Intake Material:

Stainless Steel

Exhaust Valve (in.):

1.570

Exhaust Material:

Stainless Steel

Valve Guides Included:

Yes

Valve Guides Material:

Bronze

Intake Seat Material:

High Chrome Alloy Steel

Exhaust Seat Material:

High Chrome Alloy Steel

Valve Job Type:

5 Angle

Rocker Stands Included:

Yes

Valve Springs Included:

No

Valve Spring Type:

N/A

Valve Spring Max Lift (in.):

N/A

Closed Spring Pressure:

N/A

Open Spring Pressure:

N/A

Retainers Included:

No

Spring Retainer Material:

N/A

Quantity:

Sold as a Pair