SRP Forged Flat Top Pistons

Ford 383 388 393 395 408 forged flat top pistons by SRP 206060. This stroker combo is based on the Ford 351W with either a 3.750 or 3.800 stroke.

This piston set is .030 over size.

Provides 383 cubic inched with the 4.030 bore size and .3750 stroke and a 6.250 connecting rod.

Provides 388 cubic inches with the 3.800 stroke and 4.030 bore size and a 6.250 connecting rod.

Provides 393 cubic inches with the 4.030 bore and 3.850 stroke and a 6.200 long connecting rod.

Provides 395 cubic inches with a 4.030 bore and a 3.875 stroke with a 6.200 long connecting rod.

Provides 408 cubic inches with a 4.00 stroke. 4.030 overbore, and a 6.125 long connecting rod.

CNC machined ring grooves for 1/16, 1/16, 3/16 rings.

Wrist pin measures .927 by 2.750 with a .150 wall thickness.

Reference block height is 9.500.

Compression height is 1.350.

Dome volume is -5cc, deck height is -.025.

Piston weight is 468 grams.

Sold as a set of 8 forged flat top pistons with pins.

The 3.750 stroke setup provides a compression ratio of 11.9 with 58cc chamber heads, 11.0 with 64cc chamber heads and 10.0 with 72cc chamber heads.

The 3.800 stroke setup provides a compression ratio of 12.1 with 58cc chamber heads, 11.2 with 64cc chamber heads and 10.3 with 72cc chamber heads.

The 3.850 stroke setup provides a 12.2 compression with a 58cc chamber cylinder head, 11.3 compression with 64cc chamber cylinder heads and 10.4 compression with 64cc chamber cylinder heads.

The 3.875 stroke setup provides a 12.3 compression with a 58cc chamber cylinder heads, 11.4 compression with a 64cc chamber cylinder head and 10.5 compression with a 62cc chamber cylinder head.

The 4.000 stroke setup provides 12.6 compression with 58cc chamber cylinder heads, 11.7 compression with a 64cc chamber cylinder head and 10.7 compression with a 72cc chamber cylinder head.

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: 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.


SRP 206060 forged pistons Ford 383 388 393 395 408 stroker flat top pistons SRP-206060$525.97
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