-18%

KB Claimer Chevy 377/400 Hypereutectic Pistons, Flat Top, 5.7/5.565 Rod

-18%

#4749907

KB Claimer Chevy 377/400 Hypereutectic Pistons, Flat Top, 5.7/5.565 Rod

Name: KB Claimer Chevy 377/400 Hypereutectic Pistons, Flat Top, 5.7/5.565 Rod
Brand: Keith Black
SKU: 4749907
Rating: 5 (2 reviews)

2 Reviews

5 Questions

Oversize:

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$314.16

/set

In Stock

$387.85

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Product Summary

Flat Top w/ 2 valve reliefs Piston Style, 3.480" Stroke

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Key Specs

MFG. Part #	Select Oversize
Piston Style	Flat Top w/ 2 valve reliefs
Piston Material	Hypereutectic Aluminum
Wrist Pin Included	Yes
Wrist Pin Style	Press-Fit or Floating

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Need To Know

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Details

These Keith Black Claimer pistons (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 377 c.i. (4.125" bore x 3.48" stroke x 5.7" rod) and Chevy 400 c.i. (4.125" bore x 3.75" stroke x 5.565"). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

Item Details

(377) C/R 64cc=10.9, 76cc=9.6
(400) C/R 58cc=12.6, 64cc=11.7, 76cc=10.3
Piston/Pin Weight: 630 g
Rod Length: 5.7(377), 5.565(400)

Charts

KB Claimer Piston Chart (GIF)

Ring Style Chart (GIF)

Specs

Comp Height 5.565" Rod - 1.565
Comp Height 5.7" Rod - 1.565
Pin Diameter - 0.9272

Guides & Documents

Pistons Technical Information (4749907)

Installation Instructions (Keith Black)

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.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Specifications

KEY SPECS
MFG. Part #	Select Oversize to see
Brand	Keith Black
Piston Style	Flat Top w/ 2 valve reliefs
Piston Material	Hypereutectic Aluminum
Wrist Pin Included	Yes
Wrist Pin Style	Press-Fit or Floating

GENERAL
Piston Diameter	Select Oversize to see
Stroke	3.480"
Connecting Rod Length	5.700"
Piston Weight	630 grams
Piston Ring Style	A
Wrist Pin Diameter	0.9272"
Top Ring Thickness	5/64"
Second Ring Thickness	5/64"
Oil Ring Thickness	3/16"
Compression 58cc =	12.6 : 1
Compression 64cc =	10.9 : 1
Compression 76cc =	9.6 : 1
GTIN Code	Select Oversize to see
Sold in Quantity	Set

Ratings & Reviews

2 Reviews

Overall Assessment

Customers highly appreciate the fit, performance, and speedy delivery of our product. Its practicality and user-friendliness are repeatedly mentioned, emphasizing its superior qualities compared to competitors. The material quality is reliable, and the product is praised for its dependability and effectiveness. The consensus recommends our product as a top choice among alternatives.

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2 reviews

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I will purchase here again

5.0

16 days ago

Julius

La palma,CA

Verified

Everything fit great, and performs very well

Would Recommend

400 small block pisons

5.0

5 years ago

Tom

Stafford va

Verified

Always very helpful and speedy delivery

Showing 2 of 2 reviews

Questions & Answers

5 Questions • 5 Answers

Sort Questions

For a 377 with 202/160 041 heads 'intake & exhaust valves unshrowded , 39 thousands gaskets U.E.M. 9907hc+030 Claimer's w.Mahle 40141cp-030 rings is 29 thousands on the top & 19 on the second ok ? If I keep good fuel in it and keep it under 200 degrees or try to ? The rest is speedmaster rods , scat crank , Herbert hydraulic roller 510 / 280 1.6 rockers , dart shp intake, quick fuel 750 q series carb and a complete m.s.d. ignition . This is going in a 59 international a100 with a 700r4 and 2200 stall , 12 bolt 373 welded up ' not that the last few lines matter on ring gap but I see every one all ways adding all this so well , . But I'm hearing allot on a wider second ring gap to relieve pressure ' witch makes sense but not real sure

by Jeff

• 7 years ago

1 answer

View Answer

I plan on using the pistons in a pretty hot 377 street engine. will they be ok to spin 6300-6500 RPM? I have not ever used Keith Black Pistons before and wonder about durability.

by Grandsons S-10

• 8 years ago

1 answer

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Can I run this piston on a 5.7 rod with a 3.75 crank?

by Kyle

• 10 years ago

1 answer

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do these pistons come in std size

by 1930ford

• 11 years ago

1 answer

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what is the difference in a claimer vs chevy 350 pistons ?

by befrog

• 12 years ago

1 answer

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5 of 5 questions shown