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Manley 290135 SBC Rotating Assembly Stroke Bore Flat Top - 383ci 3.750 4.035 4cc

Manufacturer

Picture for manufacturer Manley

Part Number

290135
10 reviews
Sale Price

$2,910.34

2 left at this price

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Usually delivered within 2 days

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Product Details

The Manley 290135 is a complete 383 cubic inch rotating assembly engineered for Small Block Chevy engines. Designed for use with a 350 engine block and 350 main journal diameters, this kit delivers everything needed to build a high-performance SBC stroker foundation in one package.

At the core of this assembly is a forged 4340 non-twist lightweight crankshaft with a 3.750" stroke, paired with 4340 forged steel H-Beam connecting rods featuring 7/16" ARP 8740 rod bolts (rated to 750+ HP Oval Track / 800+ HP Drag Race). Optional ARP 2000 cap screws are available for horsepower levels up to 1,500 HP. The 6.000" rods are matched to 2618 forged aluminum Platinum Series flat-top pistons with a -4.0cc valve relief and a 4.035" bore size.

Piston Specifications:

  • Bore: 4.035"
  • Compression Height: 1.125"
  • Piston & Pin Weight: 494 grams
  • Piston Style: Flat Top, -4.0cc valve reliefs
  • Pin Size: 0.927" dia, 2.300" long, 0.130" wall
  • Locks: Round Wire, 0.061"
  • Ring Grooves: 1/16" Top | 1/16" Middle | 3/16" Bottom
  • Piston Clearance: 0.005" measured 1.100" from bottom of oil ring
  • Valve Notches: 0.300" Intake / 0.190" Exhaust
  • SBC 2-piece rear seal crankshaft — P/N 190150
  • "Classic Race" piston ring set: plasma moly ductile iron top rings, reverse-twist cast iron taper-face second rings, and 3-piece oil rings
  • Clevite "H" Series narrowed rod bearings
  • Clevite "P" Series main bearings
  • Premium Chrome Moly wrist pins

Crankshaft Treatment: Manley starts with a 4340 steel non-twist forging that undergoes extensive heat treating and stress relieving, followed by shot peening, nitriding, and 100% magnaflux inspection for complete structural integrity.

Note: This assembly is supplied unbalanced. Professional balancing is recommended prior to installation. Compression ratios are calculated at 0.005" deck clearance with a 4.060" head gasket I.D. and 0.040" compressed thickness.

Very satisfied with this company. Ordered the part from another company and had nothing but problems. We found this place and the part was cheaper and they delivered the right part! Will do busy with again.

Good

Very happy with my purchase. SUPER fast shipping and great communication. Will use again!

Really good prices and fast delivery.

fairly easy, shipping was expensive though

Very easy to talk to on the phone and excellent service.

Autoplicity has made my parts search so much easier. With the best price gurantee, i can now make autoplicity my one-stop shop for all my parts needs.

Lowest prices and fast shipping made this a great transaction.

I'm very pleased with Autoplicity. i needed a new battery for my antique Ford.After much searching,I found Autoplicity had it for over $25.00 less than the next lowest price I found. My order was shipped in less than 24 hrs. Thank you. I'll be recommending Autoplicity on the Ford forums I belong to

A+ part as advertised, quick shipping.

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