Culatas de cilindros ensambladas con rodillos hidráulicos de 6 pernos para Chevy GM LS7 de 250 cc y 60 cc

Las culatas de la serie Speedmaster LS se encuentran en rápida expansión. La plataforma LS (Gen3/4) ofrece numerosas ventajas de diseño con respecto a los diseños anteriores de motores SBC, especialmente en las culatas. Si bien las culatas GM son excelentes, hemos desarrollado una línea superior de culatas para los entusiastas del rendimiento moderno. Al igual que todas las culatas Speedmaster, las culatas de la serie LS se fabrican mediante nuestro proceso de "Fundición por Gravedad". Este proceso garantiza una fundición más uniforme y robusta, sentando las bases para la construcción.

Brand:	Speedmaster
Part Number:	PCE281.2092
Part Type:	Cylinder Head [Assembled]
Product Line:	Hydraulic Roller Tappet
Cylinder Head Style:	Assembled
Cylinder Head Material:	Aluminum
Cylinder Head Finish:	Natural
Combustion Chamber Volume (cc):	60 cc
CNC-Machined Combustion Chamber:	No
Intake Runner Volume (cc):	250 cc
Exhaust Runner Volume (cc):	n/a
CNC-Machined Intake Runner:	No
CNC-Machined Exhaust Runner:	No
Intake Port Shape:	Rectangular
Intake Port Location:	Standard
Exhaust Port Shape:	Oval
Exhaust Port Location:	Standard
Spark Plug Style:	OEM
Comp. Valve Job:	No
Intake Valves Included:	Yes
Intake Valve Diameter (in):	2.200 in.
Exhaust Valves Included:	Yes
Exhaust Valve Diameter (in):	1.600 in.
Valve Springs Included:	Yes
Maximum Valve Lift (in):	0.625 in.
Outside Diameter of Outer Spring (in):	1.290 in.
Damper Spring Included:	Yes
Number of Springs Per Valve:	Dual
Retainers Included:	Yes
Retainer Material:	Chromoly steel
Locks Included:	Yes
Lock Style:	7 degree
Valve Stem Seals Included:	Yes
Valve Stem Seal Style:	Positive stop
Rocker Arm Studs Included:	N/A
Rocker Arms Included:	No
Rocker Arm Nuts Included:	No
Guideplates Included:	N/A
Valve Cover Mounting Style:	Perimeter Bolt
Accessory Bolt Holes Drilled:	Yes
Intake Valve Angle:	15 deg.
Exhaust Valve Angle:	15 deg.
Valve Guides Included:	Yes
Valve Guide Material:	Steel
Valve Seats Machined:	Yes
Valve Seat Machine Style:	3-angle
Valve Seat Material:	Ductile iron
Steam Holes Drilled:	N/A
Oiling Style:	Through pushrod
Machined for O-Ring:	No
Heat Crossover:	No
Quantity:	Sold as a pair.

Assembly Specifications

Max Lift: .625"
Coil Bind: 1.180"

Intake Install: 140lbs @ 1.8

Exhaust Install: 140lbs @ 1.8

Open Seat Pressure: 335lbs @ .600 lift