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Keith Black Pistons SKB370-040 in our Pistons Department


Keith Black Pistons

Part Number

11/29/2033 5:32 PM
Cyber Monday Price


Out of Stock

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No Hassle Returns

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Live-in-stock inventory

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Product Details

Keith Black Pistons SKB370-040 in our Pistons Department

KB PERFORMANCE PISTONS Hyper Single Piston - Pontiac 389 Rod 6.630 Flat

Products specifications

Bore (in)

4.103 in.

Bore (mm)



Compression Calculator

Compression Distance (in)

1.720 in.

Pin Diameter (in)

0.981 in.

Piston Head Volume (cc)


Piston Material

Hypereutectic aluminum

Piston Ring Thickness

5/64 in. x 5/64 in. x 3/16 in.

Piston Style

Flat top, with two valve reliefs


Sold individually.


Stroker Combinations

Wrist Pin Style

Press-fit or floating

My first time ordering from you, so far so good. I got my order in two days and it was what I expected. GREAT

little confusing but great

Went well, does it come with a spout?

1st order and all went well. Price was great, shipping reasonable.

Ordered on a Tuesday received on Saturday.

Quick and easy.

I'll start off saying that Autoplicity's prices are unbeatable...but, I placed my order on a Saturday night (which I know is the weekend)on a in stock part and it took them till the following Thursday to ship it out. I use my truck to make a living and was hoping to get it a little quicker, but now I'm down another 3-4 days till the part gets here. Also, I sent a e-mail on Tuesday evening regaurding my order and never got a response.

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