FE Power Forums

FE Power Forums => FE Technical Forum => FE Engine Dyno Results => Topic started by: 66QBIRD on March 21, 2025, 03:56:12 PM

Title: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: 66QBIRD on March 21, 2025, 03:56:12 PM

Dynoed at Johnson Automotive Enterprises WV

642HP@6100 /621TQ@4900

Block: 63 427 Top oiler converted to hydraulic cam
Crank:  4.25 scat steel
Rods:  Molnar
Pistons:  Racetec 10.9
Rings:  malhe 1.5/1.5/3mm gas ported by total seal
Oil pump:  melling 57HV
Balancer: Power Bond SFI

Oil pan: Canton T no windage tray

Camshaft:  Lykins custom hyd roller
Lifters: Morel

Cylinder heads:  TFS middle priced head, out of box
Springs:  PAC
Retainers: Steel 10 degree
Head Gasket: FEL 1020

Rockers: Harland Sharp
Shafts/stands/spacers/studs: Harland Sharp
Smith Bros pushrods

Intake: TFS TW 2x4, power coated silver, Port matched

Carbs: Refurbished 715 holleys
1" open spacers


Distributor:  stock FE,   steel gear and petronix module
Wires:  Accel 8.8
Plugs: NGK v-power
40 degrees advance

Dyno headers 1-7/8

Link to engine build, and for sale.

www.yellowbullet.com/threads/1963-427-482-trickflow-headed-ford-fe-pump-gas-high-vacuum-640-hp

Title: Re: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: 66QBIRD on March 21, 2025, 05:24:02 PM

Oops try this instead

https://www.yellowbullet.com/threads/1963-427-482-trickflow-headed-ford-fe-pump-gas-high-vacuum-640-hp-dyno-fresh.2699806/

Title: Re: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: blykins on February 19, 2026, 10:13:42 AM

Want to follow up on this one.  Jim worked with me on another camshaft iteration for this engine.   

I did another hydraulic roller camshaft for it and we ended up with 687 hp @ 6100 rpm and 639 lb-ft of torque. 

These were unported TFS heads, with a Tunnel Wedge.  10.9:1, pump gas. 

Title: Re: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: My427stang on February 19, 2026, 10:21:30 AM

Very nice!

Title: Re: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: chilly460 on February 20, 2026, 07:19:23 AM

Picked up 40hp at same rpm with a cam change, was it losing valve control?

This is yet another TFS combo making great power without having to spin it too high, they really are impressive

Title: Re: Johnson Automotive Enterprises 427/482 pump gas, TFS Top end, 642HP/621TQ
Post by: blykins on February 20, 2026, 10:13:27 AM

Goals changed from first customer to second….