davis

Just a quick note to anyone following the development of the "Q-Code" engine. Dropped it into the engine bay of the '60 F-100 this past weekend. Fought it in all of the way from start to finish. What a PITA.

This week, I'll go out to the ranch and fire it up.

Any thoughts for initial timing?


:davis:

crochunter

I thought you was the expert Davis. Shouldnt you know.

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Rhett

What is a "Q-code" engine?

xdclevo

They come out a HQ. Very rare. rofl

Rhett

where is HQ?

Is this related to the division run by "Q" that sponsors 007 ?

jg66me

351 Cobra Jet. Basicaly its a 351c 4V with large port open chamber heads.

Steve

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Rhett

thanks Steve

TruBlu351

My workshop manual says 5* initial Should make it nice and responsive!!

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davis

...except that mine has closed chamber heads and a solid flat tappet camshaft. I call it a "Q-Code" with quotation marks to indicate that it isn't exactly a true Q-Code, but nearly in several ways. This engine has a 4-bolt block and 4V CC heads, forged flat top pistons and a reasonable, but definitely not wild cam.

However, the biggest reason for calling it a "Q-Code" is because the block came out of a true Q-Code car that was rusted into oblivion. I've also been calling this my "budget-minded" engine. The objective was to save (actually, not spend) as much money as I usually do on engines, but to reco mostly factory parts

1972 4-bolt 351 CJ (Q-code) Engine Block (+.030")
Cylinder Walls Sonic Checked 8 Places Per Cylinder
Professionally Bored Using Torque Plates
Mains Align Honed
Cylinders Cross-Hatched Finished Honed 400 Grit Stone
D0AE Reconditioned Connecting Rods
ARP 154-6403 Wave-Loc 190,000 PSI Rod Bolts
Big and Small Ends Resized
Rods Balanced to Within 1 Gram
Shot Peened Beams
4MA Reconditioned Cast Iron Crankshaft (-.010"/-.010")
Professionally Reconditioned by Arizona's Best Crank Man
Magnufluxed & Straightened
Main Journals Ground -.010" and Micropolished
Rod Journals Ground -.010" and Micropolished
All Oil Holes Chamfered
Sealed Power Forged Flat Top Pistons (+.030") 9.5:1 CR
SpeedPro Moly Rings
D1AE Reconditioned 4V Closed Chamber Cylinder Heads (66cc Combustion Chambers)
Cylinder Heads Professionally Reconditioned by Desert Cylinder Head
Ferrea Stainless Steel 2.19" Intake, 1.71" Exhaust Single Groove Valves
Hardened Exhaust Valve Seats for Unleaded 91 Octane Premium Fuel
Professional 5-Angle Valve Job
Bowls Blended
Bronze Valve Guides
1-Piece High Performance Valve Seals
Crane 99893 Dual Coil Valve Springs w/Chrome Moly Retainers and Locks
ARP 200-7201 Pro Series 7/16" Rocker Arm Studs
Jomar Stud Girdles
Comp Cams 1330-16 Chrome Moly Steel Roller Rocker Arms (1.70:1)
ARP 154-3604 Cylinder Head Bolts
Lunati Solid Flat Tappet Camshaft .550"/.570" 238*/248* @ .050" w/1.70 Rocker Arm Ratio
Holley 800 CFM Double Pumper
Edelbrock Torker Aluminum Single Plenum Intake
Roll Master Billet Timing Gears/Chain Set
Romac Chrome SFI-rated Dampener
Moroso Chrome Stamped Steel Valve Covers
Mellings HV Oil Pump
Milodon Deep Sump Oil Pan, Pick Up and Oil Pump Driveshaft
Hughes SFI-rated Flexplate
TCI Street Fighter C6 Automatic Transmission
Art Carr 4200 RPM Stall Torque Converter
MSD 8577 Billet Distributor w/6AL Ignition Control Box
Taylor 8mm Wires
Autolite #25 Sparkplugs Gapped to .045"



:davis:

davis

I certainly have an opinion. Is it wrong to solicit the opinions of others? It has been a long time since I built an engine with a flat tappet camshaft. I don't want it cranking very long during inital startup, so I'm looking for suggestions. You make it sound like I'm not allowed to ask others here anything because of my experience in this realm. This is the first engine that I haven't broken in on the dyno in probably 25 years. With 150# of seat pressure, I'm going to take every advantage that I can get...and that includes asking my fellow Clevelanders for their opinions. If this is all that you can contribute--and I'll try to put this into words you'll be able understand--bugger off wanker!


Now, if anyone else has something constructive to add, I'm interested in your opinions.



:davis: