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Howards Cams H403756012T Forged 4340 Steel Crankshaft 3.750" Stroke Small Block Chevy 400

Manufacturer

Picture for manufacturer Howards Cams

Part Number

H403756012T
19 reviews
Sale Price

$891.66

1 left at this price

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Usually delivered within 2 days

free shipping

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Product Details

The Howards Cams H403756012T is a high-performance forged crankshaft engineered for small block Chevy 400 cubic inch engines. Precision-manufactured from premium 4340 steel, this crankshaft delivers exceptional strength and durability for high-stress applications including performance street builds, drag racing, and aggressive performance engines.

Key Specifications:

  • Material: Forged 4340 steel construction for superior strength and fatigue resistance
  • Stroke: 3.750 inches
  • Balance: Internally balanced design
  • Seal Type: 2-piece rear main seal configuration
  • Application: Small block Chevy 400 engines

Performance Features:

  • Forged 4340 steel provides maximum tensile strength for demanding applications
  • Internal balance eliminates the need for heavy external counterweights
  • Precision-ground journals ensure optimal bearing fit and longevity
  • Heat-treated for superior durability and resistance to stress cracking
  • 2-piece seal design compatible with factory-style rear main seals

This crankshaft is ideal for engine builders seeking a robust, reliable foundation for increased horsepower and torque output. The forged construction offers significantly greater strength compared to cast crankshafts, making it suitable for high-RPM operation and forced induction applications. Each crankshaft is manufactured to exacting OEM tolerances for proper fit and function.

Products specifications

Balancer Bolt Thread Size

7/16-20 in.

Crankshaft Material

Forged 4340 steel

Crankshaft Snout Style

Standard

Engine Stroke (in)

3.750 in.

Lightened

No

Main Bearings Included

No

Main Journal Diameter (in)

2.650 in.

Quantity

Sold individually.

Rear Main Seal Style

2-piece

Requires Narrow Bearings

Yes

Rod Bearings Included

No

Rod Journal Diameter (in)

2.100 in.

Tool

Stroker Combinations

Few tiny chips in the paint. Otherwise very happy with product, price and speedy delivery

All was great

Fast and easy transaction.

Easy Peasy

Easy to find product and check out

Exactly as expected. Fast, easy, and great prices.

Excellent. Exactly as shown, just what I needed. Quick delivery. Great price.

Fast and easy

Great transaction. The bike rack was about $90 less than a local retailer, and shipping was faster than promised. I wish all internet retailers were this reliable and useful.

so far like wht i see n i will be buyin more iteams in the futrue

Easy to follow web page

good

Easy ordering. Bets price by far. Fast shipping.

So far so good

Easy mobile site. Chose 2nd day air. Would love if handling time was 1 business day. We shall see!

Return customer, excellent communication and fast shipping A+

Quick, easy, very nice to offer multiple checkout services

Smooth transaction through and through

Autoplicity had the best price availiable for the product I purchaced. They beat all other competititor's prices!

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