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

Edelbrock 46720 LS3 416ci Stroker Long Block Assembly with GM LSA Heads

Manufacturer

Picture for manufacturer Edelbrock

Part Number

46720
8 reviews
Sale Price

$19,795.84

Estimated ship date Thursday, November 26

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 Edelbrock 46720 long block assembly is the same powerplant used in Edelbrock's legendary LS Supercharged crate engine, capable of delivering 720 horsepower and 695 ft-lbs of torque on 91 octane pump gas. This 416 cubic inch LS3 stroker features premium forged internal components and aluminum construction for exceptional strength and reliability in forced induction applications.

Engine Block and Internal Components:

  • Aluminum LS3 block with black powder coated finish
  • Forged and balanced Manley 4340 steel crankshaft with 4.000" stroke
  • Forged Manley H-beam connecting rods for extreme durability
  • Manley forged aluminum pistons, 4.065" bore, 9.5:1 compression ratio
  • One-piece rear main seal design

Cylinder Heads and Valvetrain:

  • GM LSA cylinder heads equipped with Edelbrock valve springs #5768
  • LS3 rocker arms with 1.7:1 ratio
  • High-performance camshaft: 215°/247° duration, .629"/.656" lift, 121° LSA

Performance and Applications:

  • Displacement: 416 cubic inches (6.8L)
  • Power potential: 720+ HP with Edelbrock supercharger system
  • Torque potential: 695+ ft-lbs with forced induction
  • Compact design allows seamless installation into most LS-swap platforms
  • Ideal foundation for high-performance supercharged or turbocharged builds

This long block assembly does not include an induction system. Backed by Edelbrock's 2-year unlimited mileage warranty, this is a turn-key solution for builders seeking bulletproof LS performance with exceptional power potential.

Products specifications

Main Bearing Cap Bolt Quantity

6

RGL

WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

Grade Type

Performance

Fuel Type

Gas

Water Pump Included

No

Main Bearing Cap Bolt Quantity

4-Bolt

Universal Or Specific Fit

Specific Fit

Hardware Included

Yes

Rear Main Seal Type

1-Piece

Throttle Body Included

No

Wire Harness Included

No

Calibration

No

Engine Block Material

Cast iron

Plug Wire and Boot Included

No

Oil Filter Included

Yes

Compression Ratio

9.5:1

Distributor Included

No

RGL

WARNING: This product can expose you to Chromium, Lead, and Zinc which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

Quantity

Sold individually

Valve Cover Material

Cast aluminum

Rocker Arm Ratio

1.7:1

Spark Plugs Included

No

good price

Great services

Connectors arrived in this morning's mail. Took a little longer than expected, but order was filled and delivered. I would buy from them again.

Great website good products and best prices I've found so far thanks guys.

quick and easy thanks

Easy to order and best retail price I could find.

Excellent prices with fast shipping.

dfgasdg

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