
Product Discontinued
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
1-Piece Rear Main Seal
Merlin III Cast Iron Engine BlockBig Block Chevy 1-Piece Rear Main Seal 4.495 in. Bore 10.200 in. Deck Height Nodular Iron Splayed Main Caps
Features
- Material: Cast Iron
- Bore: Semi-finished to allow final honing to piston/ring package
- Deck Height: 10.200 in.
- Cam Bearings: Standard
- Main Bearings: Standard
- Camshaft Location: Stock
- Lifter Bores: Standard Indexed
- Maximum Recommended Bore: 4.625 in.
- Cylinder Wall Thickness: .310 in. @ 4.600 in. Bore
- Water Jackets: Expanded for better cooling
- Lubrication: Priority main oiling system
- Filtration: Integral mount for spin-on filter
- Oil Pan Rails: Solid stock width (can be clearanced for Strokers)
- Oil System Features
- Priority main oiling
- Stepped oiling .584-.500-.437 in.
- Integral spin-on oil filter mount
- Oil drain back in valley lubricates distributor gear
- Drilled for dry sump valley scavenge lines
- Extra head bolt bosses in the valley to accommodate special racing heads
- Blind holes drilled into the valley for screen
- Main Caps: 4-bolt splayed nodular iron
- Fuel Pump Mount: OE mount
- Starter: OE mount
- Motor Mounts: Front and side
- Cylinder Head Holes: Blind tapped to prevent leaks
- Compatible with Mark IV Components
- Weight: Approximately 270 lbs
- Made In The USA
Part TypeEngine Block
BrandWORLD PRODUCTS
Package Width270.0
Weight270.0 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number081114
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
Some parts are not legal for use in California or other states with similar laws / regulations


![Engine Stand [1250 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-80041.jpg)
![Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81156.jpg)
![1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]](https://www.jegs.com/images/mini_200/500/555/555-81044k.jpg)

![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)
![1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]](https://www.jegs.com/images/mini_200/500/555/555-m200db.jpg)

![Engine Stand [1000 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-80040.jpg)