AFR 1845 LS3 260CC Aluminum Cylinder Heads, 2.165/1.6 in. Valves, 69cc Comb. 1.27 in. Spring

$3,204.10
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SKU:
AFR1845
MPN:
1845
Condition:
New
Weight:
72.00 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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AFR’s 260cc LS3 “Mongoose” heads feature 100% CNC ported intake, exhaust and chambers using AFR advanced engineering and flow techniques to produce the ultimate Rectangle Port head available today. Featuring A356 aluminum castings, titanium retainers and the highest quality components, throughout. They’re designed for 4.000 or larger bore applications up to 454 CI, operating up to 7000 RPM. This product is street legal in 50 states from 2007 to 2016 emission controlled vehicles with a General Motors 6.2L LS engine.

Features

  • 2.165"/1.600" stainless valves
  • 69cc exhaust runners
  • .650" Max Lift
  • 260cc Intake Runners
  • 69cc Combustion Chambers
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Cylinder Head Finish:
Natural
CNC-Machined Combustion Chamber:
Yes
Combustion Chamber Volume (cc):
69cc
Combustion Chamber Style:
Heart
CNC-Machined Intake Runner:
Yes
Intake Runner Volume (cc):
260cc
Intake Port Shape:
Rectangular
Intake Port Location:
Standard
Intake Valve Angle:
12 degree
CNC-Machined Exhaust Runner:
Yes
Exhaust Runner Volume (cc):
95cc
Exhaust Port Shape:
Oval
Exhaust Port Location:
Standard
Exhaust Valve Angle:
12 degree
Intake Valves Included:
Yes
Intake Valve Diameter (in.):
2.165 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Valve Type:
Stainless
Maximum Valve Lift (in.):
0.650 in.
Valve Springs Included:
Yes
Valve Spring Type:
Dual W/Damper
Outside Diameter of Outer Spring (in.):
1.270 in.
Valve Guides Included:
Yes
Valve Guide Material:
Bronze
Valve Seats Machined:
Yes
Valve Seat Material:
Ductile iron
Valve Seat Machine Style:
45 deagree seats with multiple angles
Retainers Included:
Yes
Retainer Material:
Titanium
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Umbrella
Locks Included:
Yes
Lock Style:
7 Degree
Camshaft Style:
Hydraulic roller
Spark Plug Style:
Angled
Guideplates Included:
No
Guideplate Pushrod Size:
N/A
Rocker Arm Studs Included:
No
Rocker Arm Nut Thread Size:
N/A
Accessory Bolt Holes Drilled:
Yes
Valve Cover Mounting Style:
Centerbolt
Heat Crossover:
No
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Quantity:
Sold as a pair.
Notes:
For 4.0 in. and larger cylinder bore. Designed for four bolt blocks. Valve Spring Pressure, 155 lbs closed. Spark Plug Type 14mm Spark Plug, .690 Reach, 5/8 Hex
CARB EO Number(s):
D-250-5
Emissions:
California EO Approved
Make:
Chevrolet
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Engine Sizes:
6.0L/364-7.0L/427
Years:
1999-2015