CLEVOR/BOSS

Clevor History & Evolution

The Clevor or Boss engine isn’t a new concept. These engines have been around since the early 1970s, originally using Windsor blocks paired with Cleveland cylinder heads.

Today, we take that classic combination to the next level. By using aftermarket Dart Windsor blocks, strong Cleveland crankshafts, and high-performance 3V Cleveland heads, we bring together the best of both worlds. The result is a powerful, reliable engine that blends Windsor torque with Cleveland top-end performance.

461CI - 7.6L Clevor

461ci (7.6L) Clevor Engine
705 hp @ 6,500 rpm
619 lb-ft @ 4,900 rpm

The 461ci Clevor is a serious combination built around a Dart Windsor block and CHI 225cc cylinder heads. It uses a SCAT 4.250" stroke crankshaft and a 4.155" bore to deliver a strong, reliable bottom end with excellent airflow capability up top.

This package is designed to move heavy Falcons and F100s with ease. It delivers effortless torque and the kind of response that makes a big car feel light, sharp and genuinely alive.

$43,000 TURN KEY PACKAGE

IN STOCK NOW

Block

Dart SHP

Rotating assembly

Internally balanced

4130 forged scat crankshaft 4.250 stroke

Callies H-beam conrods

Forged JE pistons

Bearings & gaskets

Clevite race series bearings

Felpro gaskets throughout

Valve train

Custom hydraulic roller cam

Johnson roller lifters

Chromoly pushrods

yella terra platinum rockers 1.8

Cylinder heads

3V 225cc CHI cylinder heads

3V CHI intake manifold

REV race valves

PAC racing springs

ARP head studs

Turn key parts

Ice ignition system

Holley xp 950cfm carburettor

140amp alternator

Unrivaled alternator bracket

Unrivaled 6pk serpentine drive system

fabricated rocker covers -12 outlet

Unrivaled billet throttle cable bracket

Dyno tuned

434 Clevor

Triple black coating

$38,500 Long Engine

434ci Clevor Package
The 434ci Clevor is a proven combination, producing up to 710 hp at 6,500 rpm and 600 lb-ft of torque at 4,400 rpm.

Built for serious performance, this package is an ideal choice for tough, street-driven Ford muscle cars, delivering the strength, responsiveness, and reliability expected from an EJR Performance build.

$44,500 Turn key Engine