A smooth marriage between journal and bearing is where longevity comes from. Marvin goes t
Marvin calls these tall claims of 600-650 horsepower on pump gas as laughable because they are not true. To make brute horsepower and torque numbers, you must have compression and abundant airflow, which translates into whopping cylinder pressure and power. You must also have octane that will stand up to high cylinder pressures without detonation. There are no free lunches, Marvin stresses, when it comes to power. You're going to have to give up one thing to have more of another and there are no exceptions. He adds if you decide to cheat and go with nitrous or supercharging, you will sacrifice durability. When you can touch a button and get 150-200 horsepower, you will hammer the daylights out of an engine, Marvin offers with a snapper.
Marvin canvassed cam manufacturers for just the right combination of lift, duration, valve overlap, and lobe centers. He wanted something off the shelf anyone could buy. He found exactly what he was looking for at Erson Cams, a drag racing cam profile that offered him the smooth combination of torque and horsepower. And had Marvin been willing to go with a custom grind, he could have improved horsepower and torque numbers significantly. However, Marvin's madness is rooted in building something anyone else could build using off-the-shelf parts readily available to anyone. In his opinion, that makes things fair.
Erson Cam Snapshot
Part Number: E212991 with 1.050-inch (small) base circle.
Grind Number: R-278-2 (Intake/Exhaust)
Lobe Separation:112-Degrees +4
Lift: 0.592-inch (Intake/Exhaust)
Advertised Duration: 278/286 ‚degrees (Intake/Exhaust)
Duration at 0.050-inch: 238/246 degrees
Marvin has a unique system of torquing fasteners. Main caps get torqued in three phases fo
When main cap fastener torquing is complete, Marvin checks crankshaft endplay, which shoul
Marvin's disciplined routine includes checking volume above the piston or "cc'ing" chamber
As with main bearings and journals, rod bearings and journals must have a happy marriage.
It is incredibly easy to install rod bearings backwards or not set the bearing properly. D
Our Probe Industries 4340 H-Beam rods are secured with 7/16-inch cap screws, which clamp b
There's always plenty of stress on crankshaft endplay, but not enough of us check camshaft
Marvin checks for true top dead center, which helps determine exact cam timing and piston-
This is Marvin's finish work, with screw-in oil galley plugs and GE Glyptal.
To achieve perfect fit between the Edelbrock/Glidden heads, Super Victor intake manifold,
All fasteners should be lubricated with engine oil, anti-seize, or molybdenum grease. This
Erson Cams set us up with a mechanical roller camshaft designed primarily for drag racing.
16 KIT Kat Dr.
1830 Holsonback Drive
2700 California St.
Ford Racing Performance Parts
15021 Commerce Drive S
3406 Democrat Road
Holley Performance Products/Brands
1801 Russellville Rd.
621 W. Valencia Dr.
Manley Performance Products
1960 Swarthmore Avenue
704 Highway 25 South
Team C Performance Center
16706 Lakewood Blvd.
Revco Precision Balancing
6128 Cherry Ave.
2353 N. Wilson Way
Summit Racing Equipment
PO Box 909