How much HP does rocker arms add?

For engine applications that demand a step up, replacing the stock stamped or cast steel rockers with aluminum roller rockers will typically produce a gain of 10 to 15 hp with the same lift ratio, and even more of a power gain with a higher lift ratio.

Are 351w rocker arms adjustable?

It does NOT have adjustable rocker arms. It is “positive-stop hydraulic” as described in the book you are quoting. (Tom Munroe, How to Rebuild a Small Block Ford). The rocker arm nut is run down fully and torqued to 17-23 lbs while the valve is in the closed position.

Do rocker arms make a difference?

Most rocker arms are designed to increase the lift of the cam by having a positive ratio. Rocker arms are commonly designed to increase lift at the valve by about 1.3 to 1.6 times the lift at the cam. This setup also slightly increases duration, but not by the same ratio.

How much does it cost to fix a rocker arm?

Because rocker arm repair is tedious work, it can be time intensive so hiring an auto mechanic or dealership to do the job is not cheap. Expect to pay anywhere from $500 to $1,500 (parts + labor) depending on the vehicle.

What is the firing order for a 351 Windsor?

The firing order for a Ford 351 Windsor is 1-3-5-7-2-6-5-4-8, which differs from most other V-8 engines the company manufactures. Ford numbers its cylinders beginning at the front left of the engine, with cylinders one through four on that side and five through eight on the right.

What are the torque specs on a 351 Windsor?

12-15 ft. -lbs. The following specs apply to the following Ford Windsor engines: 351W….Ford Windsor Torque Specs.

Fastener Type	Torque Specs
Harmonic Damper Bolt	70-90 ft.-lbs.
Flywheel/Flexplate Bolts	75-85 ft.-lbs.
Pressure Plate Bolts	35 ft.-lbs.
Front Cover Bolts	12-15 ft.-lbs.

Do roller tip rocker arms add horsepower?

Roller tip rocker will give you a 15 to 30 horsepower increase over stock rockers and will give you a more effective valve lift….:yes: Click to expand…