Set of 8 Speed Pro Forged Coated Pistons for Chevrolet 427
About Speed Pro powerforged pistons:
These
Speed-Pro forged pistons are made from extruded VMS-75 aluminum alloy
that's forged under 3,000 tons of pressure to "near-net" shape. After
that, they're machined to their final configuration. These pistons
offer excellent strength and durability and are capable of taking the
punishment that's dished out on the street and in competition. They're
available for a wide variety of applications, including OE
replacements and all-out racing engines.
Pistons are available in 030 and 060 only
Pistons Are Sold In Sets Only
Federal Mogul/Speed Pro Piston Part
Number
|
Application |
Power Range |
Special requirements |
Compression information
|
Ring groove size
Pin diameter
|
Rod length
Stroke
|
Deck clearance
Skirt clearance
|
|
L2268NF+30
|
Chevrolet 427 V-8 - 4.280" bore (at +.030")
Domed head .300" high. DurOshield® skirt coated piston. Special Hi-Performance.
1966-69 Car (USA); 427-425HP; 435HP; closed chamber heads
|
idle to 7000+rpm |
Good for street/strip or race/nitrous to 150 shot |
Compression distance: 1.765"
Piston head volume: 36.3cc
Approx. Compression (w/.030" bore):
w/106.9cc chambers 11.25:1
w/116.9cc 10.18:1
w/119.0cc 9.99:1
|
5/64" 5/64" 3/16" ring grooves
Pin diameter: .989" (included)
|
Stock 6.135" length rods
Press-fit only
Stock 3.766" stroke
|
.020" deck clr
.0035" skirt clr
|
