Speed Pro Forged Coated Pistons+Moly Rings for Chevrolet 454
P/N L2399NF-KIT OR L2399AF-KIT
*Please
specify size - we always try to keep a good supply for you, our
customer, but sometimes manufacturer availability changes*
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.
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
|
|
L2399NF STD plus moly ring set (Hastings/Perfect Circle/MAHLE) P/N L2399NF-KIT - We also have other piston sizes available.
|
Chevrolet 454 V-8 - 4.250" bore (at STANDARD)
Domed head .095" high. DurOshield skirt coated piston. Special Hi-performance.
1971 Car 454-LS6 (USA); open chamber heads
|
idle to 7000+rpm |
Good for street/strip or race/nitrous to 150 shot |
Compression distance: 1.645"
Piston head volume: 13.8cc
Approx. Compression (w/.030" bore):
w/109.4cc chambers 9.52:1
w/116.9cc 8.98:1
w/119.0cc 8.84:1
|
5/64" 5/64" 3/16" ring grooves
Pin diameter: .989" (included)
|
Stock 6.135" length rods
Press-fit or floating
Stock 4.000"" stroke
|
-.020" deck clr
.0040" skirt clr
|
