Product Summary

Flat Top w/ 4 valve reliefs Piston Style, 3.480" Stroke

  • For Chevy 350 c.i. engines (4.000" bore x 3.48" stroke)
  • Pistons feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction
  • Has a flat-style top with 4 valve relief
  • Available in 030, 040, and 060 oversize to custom suit your application
  • Uses 5/64", 5/64", 3/16" piston rings (ring style A)
See more details

Key Specs

MFG. Part #
Piston StyleFlat Top w/ 4 valve reliefs
Piston Material
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Details

These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (wrist pin and lockrings included).

Set of 8 for Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

Item Details

C/R 58cc=10.9, 64cc=10.2, 76cc=9.0
Piston/Pin Weight: 630 g
Rod Length: 5.7"

Charts

Specs

  • Comp Height 5.7" Rod -  1.565
  • Comp Height 6.0" Rod -  1.265
  • Pin Diameter -  0.9272

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #
BrandKeith Black
Piston StyleFlat Top w/ 4 valve reliefs
Piston Material
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
GENERAL
Piston Diameter
Stroke3.480"
Connecting Rod Length5.700"
Piston Weight630 grams
Piston Ring StyleA
Wrist Pin Diameter0.9272"
Top Ring Thickness5/64"
Second Ring Thickness5/64"
Oil Ring Thickness3/16"
Compression 58cc =10.9 : 1
Compression 64cc =10.2 : 1
Compression 76cc =9.0 : 1
GTIN Code
Sold in QuantitySet

Ratings & Reviews

4.8

6 Reviews

Overall Assessment

Customers value the product for its quality and practicality. Its affordability, especially through the "comes as a kit" and "view kit components" options, is highly appreciated, making it easy for customers to purchase at their convenience. Repeated customers highlight the product's reliable performance - it does exactly what it's supposed to do. Users appreciate the product's ease of installation and precision fitting ("tight piston to wall clearance"), making it ideal for engine building for heavy-duty use, such as towing. The product is also praised for being "exact as described", affirming its authenticity and value for money.

4.8

6 reviews

5

5

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I would buy again

5.0

2 years ago

unclechunky

Algona, IA

Verified

worked great on my circle dirt track car

Would Recommend

bright and shiny

5.0

3 years ago

D.M. Outlaw Garage

southeast ks

i couldn't afford to purchase the economy rotating assembly as a whole ,so i bought it one piece at a time and having the comes as a kit and view kit components options made it very easy to save and purchase later. they look great, easy to

Would Recommend

I have bought these before and will buy them again.

5.0

4 years ago

JimBob

Denver, CO

Verified

What can I say? They filled the holes and go up and down. What more could you ask?

Would Recommend

good quality

5.0

5 years ago

Hey you

Kansas

Verified

Used to build an engine for my truck that I tow with.

Would Recommend

Yes

5.0

5 years ago

Scooter

Hutchinson Kansas

Verified

Tight piston to wall clearance.

Exact as described

4.0

8 years ago

Rick

San Antonio Tx

Verified

There are good bang for the buck

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

6 Questions • 7 Answers

Are these available in standard 4.00" bore Size?

by Patrick

• 4 months ago

1 answer

What is the max HP rating on this particular piston?

by Michael Schnetler

• 8 years ago

2 answers

Can these pistons be used with TBI heads?

by Nate

• 9 years ago

1 answer

Can these be used with 6 inch rods? I need a flat top 4 valve relief piston for 6 inch rods.

by Tim

• 10 years ago

1 answer

will these work with alcohol

by eddie777

• 12 years ago

1 answer

Are these pistons sold as a set such that for one engine i only need to order a quantity of one rather than eight (assuming an 8 cylinder engine)?

by

• 14 years ago

1 answer

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