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Forged Small Block Chevy Rotating Ass., 434 Dome, 350 Main Journal, 6 Rod

SAME DAY SHIPPING! Most orders ship within 24 hours.

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Specs
Sold in Quantity:
Kit
Piston Diameter:
-
Stroke:
4.00
Main Journal Style:
350 mains
Rod Journal Diameter:
2.10"
Rear Main Seal Style:
2-piece
Wrist Pin Diameter:
.9272
Piston Ring Style:
C
Connecting Rod Length:
6.000"
Piston Weight:
460
Piston Style:
Dome
Dome Height:
.180
Piston Material:
Forged Aluminum
Garage Sale:
No
Main Journal Diameter:
2.448"
Bearing Undersize:
Standard
Narrowed Bearing:
Yes
Bearing Construction:
Bi-metal
Coated Bearing:
No
Crankshaft Material:
Forged 4340 Steel
Connecting Rod Type:
H-Beam
Connecting Rod Material:
Forged 4340 Steel
Connecting Rod Weight:
634
Forged Small Block Chevy Rotating Ass., 434 Dome, 350 Main Journal, 6 Rod

Click image to enlarge

Details

Reviews

Q & A

What's in the Box

Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.

All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.  All balancing is done with our state-of-the-art "hines" balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits may require additional charges for heavy metal.

If you are going to run this crank in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate.

Chevy 434: 4.125" bore x 4.00" stroke

NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.

Notes

Kits feature: 

  • Scat 4340 Forged Steel Crankshaft   
    • Standard size journals
    • Straight shot and chamfered oil holes
    • Nitride hardened and shot peened
    • Lightening holes in all rod throws
    • Large radius on all journals
  • KB Signature Series Forged Pistons 
    • 2618 aluminum alloy construction
    • T-6 heat treated 
    • 4.000" bore pistons available in standard, .030, .040, or .060 sizes
    • 4.125" bore pistons available in .030 or .040 sizes
  • Speedway 4340 H-beam Connecting Rods
    • Full floating pin in silicon bronze bushing
    • Precision bolt bushings to positively locate cap
    • 6.0" lengths
    • 634 grams
    • Weight matched set of 8 rods
  • King HP Series Main & Rod Bearings
    • 0.015" thick top layer for superior macro particle embedability and conformability
    • 40 Vickers hardness to resist overlay migration and extrusion
    • 450°F heat threshold for superior protection against friction and overheating
    • Mains are 3/4 grooved for improved oiling to the rod journals
    • Bi-metal aluminum silicon alloy featuring fine micro-bore finish

Item Details

.180" dome, 460 g.
Comp. 64cc: 14.5
Comp. 76cc: 12.7

Customer Reviews

This product has no reviews.

Product Q&A

1 questions : 1 answers

1 answers

can this rotating assembly be used in a 350 block an what kind of rpm can you turn with it

lester
keystone heights fl
September 17, 2012

can this rotating assembly be used in a 350 block an what kind of rpm can you turn with it

Answers

September 17, 2012
Eric
Yes it can, however you will need to do a lot of clearancing to fit the 4" stroke and more than likely will hit the water jacket during the process of grinding material for rod bolt clearance to the pan rail area. I would stick to 7500 to 8000 and below with this long of stroke.
Page 1 of 1

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