Chevrolet Performance L92 Cylinder Heads 12711770

Overview

Brand:
Chevrolet Performance
Manufacturer’s Part Number:
12711770
Part Type:
Cylinder Heads
Product Line:
Chevrolet Performance L92 Cylinder Heads
Summit Racing Part Number:
NAL-12711770
UPC:
00193468538618
Combustion Chamber Volume (cc):
70
Cylinder Head Style:
Assembled
Cylinder Head Material:
Aluminum
Intake Port Shape:
D-port
Intake Valve Diameter (in.):
2.165 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.590 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.510 in.
Camshaft Style:
Hydraulic roller
Damper Spring Included:
No
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Rocker Arm Studs Included:
Yes
Rocker Arm Nut Thread Size:
3/8 in.-24
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Accessory Bolt Holes Drilled:
No
Valve Guides Included:
Yes
Valve Seats Machined:
Yes
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Quantity:
Sold individually.
Notes:
Fits any LS family engine with 4.000″ bore or larger.

Chevrolet Performance L92 Cylinder Heads

Chevrolet Performance L92 cylinder heads are production-style aluminum heads that provide great airflow and exceptional performance.

Features include:

* Manufactured from 319-T5 aluminum alloy
* Aluminum performance head
* Fits any LS family engine with 4.000 in. bore or larger
* Solid stem intake and exhaust valves
* .510 in. Max Lift valve springs
* As-cast L92-style intake ports
* D-shaped exhaust ports
* As-cast combustion chambers
* Angled spark plugs (14mm; 5/8 in. hex; 3/4 in. reach; taper-seat plugs)
* 15 degree valve angle
* Bolt-down-type rocker arms
* Center-bolt valve cover hold-downs

Warranty