My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Manley 29565 Big Block Chevy 565 CID Rotating Assembly 4.250" Stroke 4.600" Bore +43cc Dome Pistons

Manufacturer

Picture for manufacturer Manley

Part Number

29565
10 reviews
Sale Price

$3,461.59

Estimated ship date Friday, November 27

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 29565 is a complete high-compression rotating assembly engineered for Big Block Chevy (BBC) engines displacing 565 cubic inches. Built around a 4.250" stroke and a 4.600" bore, this kit delivers the core components needed to build a serious high-output BBC short block targeting up to 900 horsepower with standard ARP 8740 hardware or up to 1,500 horsepower with optional ARP 2000 cap screws.

At the heart of this assembly is a Manley 4340 non-twist forged steel crankshaft that has been heat treated, stress relieved, shot peened, nitrided, and 100% magnafluxed for maximum structural integrity. The crankshaft features micro-polished, large-radius journals for reduced friction and improved bearing life. This kit requires a 9.800" deck height block (standard deck BBC).

Kit Includes:

  • Manley 4340 forged steel crankshaft — 4.250" stroke, heat treated and nitrided
  • Manley 4340 forged steel H-Beam connecting rods — 6.385" length with 7/16" ARP 8740 cap screws (ARP 2000 available)
  • Manley 2618 forged aluminum Platinum Series pistons — +43cc dome, 4.600" bore, 1.395" compression height, with premium Chrome Moly wrist pins
  • High-performance piston ring set
  • Clevite H-Series rod bearings (narrowed) and P- or H-Series main bearings

Key Specifications:

  • Engine Family: Big Block Chevy (BBC)
  • Displacement: 565 CID
  • Stroke: 4.250"
  • Bore: 4.600"
  • Rod Length: 6.385"
  • Compression Height: 1.395"
  • Piston Dome: +43cc
  • Required Deck Height: 9.800"
  • Compression Ratio: ~14.0:1 with 64cc chambers / ~13.2:1 with 76cc chambers
  • Horsepower Range: 900 hp (ARP 8740) / 1,500 hp (ARP 2000 upgrade)

Important Notes:

  • Professional balancing is required before installation — this kit ships unbalanced
  • Narrowed rod bearings are required due to the large-radius journal crankshaft design
  • Not intended for use with highly boosted roots-style cog belt driven superchargers

The Manley 29565 rotating assembly is ideal for dedicated race and high-performance street engines demanding proven durability and maximum displacement from the Big Block Chevy platform.

Easy to order!

Site navigation and checkout was easy and the item arrived quickly at my door. I would definitely do business with Autoplicity again.

so far so good

Convient that I can buy through amazon

Being able to link to my amazon account made shopping super easy

site is fast and user friendly

Very Convenient.

I ordered a Thule 9001 order number 27522 bike rack for my vehicle late Monday evening and received the product on Friday. Quick shipping with the free shipping option. Very happy with purchase and with autoplicity! Will def order from them again! Also the price was 30 to 40 bucks cheaper with autoplicity.

I was skeptical at first but checked it all out and it looked ligit, placed my order and wow low prices, first rate shipping and top quailty product. I am sold! will look to Autoplicity for future purchases, already told many of my friends about the fantatic deals at Autoplicity.

Best price online

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy