SRP 142068 forged pistons.
Chrysler Plymouth Dodge 340 flat top pistons.
Sold as a set of 8 forged pistons.
Includes wrist pins.
This piston set is for .030 overbore, providing 345 cubic inches.
Bore size is 4.070".
CNC machined ring grooves accept 1/16" and 1/16" and 3/16" rings.
Dome volume is a -5CC.
Each piston weights in at 530 grams.
Wrist pins are .984 X 2.750 X 150 wall.
Designed rod length of 6.125".
Stroke is 3.313".
Compression height is 1.804".
Provides a 10.5 compression ratio with 60cc heads.
Provides a 9.8 compression ratio with 65cc heads.
Provides a 9.2 compression ratio with 70cc heads.
Made of 4032 wrought aluminum alloy.
Designed for street and strip applications utilizing compression ratios that are compatible with pump gas.
These pistons also provide a quieter engine on cold start-up.
Features symetrical valve pockets fully radiused.
Honed pin bore, forged side relief.
Full floating wrist pin.
Double spiro locks.
Machined oil drain back holes (not slotted).
Pressure fed pin oilers.
SRP pistons are forged from wrought alluminum alloys.
Wrought aluminum is 20% stronger than aluminum bar stock and 50% stronger than cast aluminum pistons.
SRP uses only the highest grade wrought aluminum alloys to make a stronger, lighter piston. These aerospace quality alloys have been rigourously tested and found to be the most durable material for this application.
To optimize the weight of the piston, application specific forgings are designed in 3D computer modeling programs. This makes it possible to have consistent dome thickness which will not compromise the durability of the piston.
All SRP pistons feature fully CNC machined domes, dishes and valve reliefs to give you precise compression ratios and consistent weights.
All SRP pistons incorporate CNC diamond turned skirts to provide you with a better, more consistent finish, and have CNC honed pin bores and are thoroughly deburred prior to cleaning and packaging so no prep work is required.
SRP pistons are ready to run right out of the box.
ORDERING NOTE: Pistons are not returnable. Please be sure to check your engines oversize requirements, cam requirements and head and piston to valve clearance requirements before ordering. We recommend that this be done by an experienced and competant engine builder.
We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page.
We will not ship to freight forwarding - expediting companies.
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