Product Description

Chevy 7.4/454 Speed Pro Hypereutectic Flat Top Pistons Set/8 +.030" w/rods rings

Set of 8 Speed Pro Hypereutectic Pistons for Chevrolet 454

Federal Mogul/Speed Pro Piston Part

Power Range Special requirements

Compression information

Ring groove size

Pin diameter

Rod length


Deck clearance

Skirt clearance

H661CP+30-kit - We also have other piston sizes available.

Chevrolet 454 - 4.280" bore (at +.030" bore)

Flat head w/2-valve reliefs. DurOshield skirt coated piston.

1973-83 LD Truck (USA); use in sets only

1970-76 Car (USA); Except Hi-Perf.; use in sets only

idle to 7000+rpm Good for street or race/nitrous to 150 shot

1.625" compression distance

Approx. Compression (w/.030" bore):

w/106.9cc heads 8.50:1

w/116.9cc 7.95:1

w/119cc 7.84:1

5/64" 5/64" 3/16" ring grooves

.989" pin diam. - pins included

for stock length 6.135" rods

PRESS-fit only

Stock 4.000" stroke

.025" deck clr

.0015" skirt clr

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