Bishop's Performance - Twin Cam Packages

These are the basic parts that we use in our most popular packages.
Some parts may vary by model and/or personal preference.
Additional parts and/or machining may be involved.
Optional items are marked with a # . SE = Screamin' Eagle®
See more examples on our "Dyno Graphs" page.
Note: These packages were originally designed for '99 - '06 Twin Cam 88 motorcycles.
Some parts and performance will be different for '06 Dyna and '07 and later Twin Cam 96 engines.

Package #1	95" Low-End Torque (Great for Dressers)
*Approximately 80-85 hp and 95* ft-lb torque**
Heads	Stock, Stage 1 or 2 "HammerHeads"
Cylinders	Bored Stock
Pistons	Flat top 9.25:1
Cams	Andrews TW21
Air Cleaner	SE -or- K&N -or- Ness Big Sucker
Intake	Carb = SE intake manifold, ported
	EFI = stock throttle body or ported
Fuel Management	Carb = Stock Carb w/ Keihin Jet Kit
	EFI = Tunable system
Clutch #	Stock -or- with heavy spring
Exhaust #	V&H -or- Cycle Shack slip-on mufflers, V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Examples of Twin Cam Package #1

Package #2	95" Mid Torque
*Approximately 90 hp and 95* ft-lb torque**
Heads	Stock, Stage 1 or 2 "HammerHeads"
Cylinders	Bored Stock
Pistons	Flat Top 9.25:1
Head Gaskets	Cometic .040"
Cams	Andrews TW26
Air Cleaner	SE -or- K&N -or- Ness Big Sucker
Intake	Carb = SE intake manifold, ported
	EFI = stock throttle body or ported
Fuel Management	Carb = Stock Carb w/ Keihin Jet Kit
	EFI = Tunable System
Ignition	Carb = SE
Clutch #	Stock -or- with heavy spring
Exhaust #	V&H -or- Cycle Shack slip-on mufflers, V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Examples of Twin Cam Package #2

Package #3	95" Mid-Hi Hp/Torque
*Approximately 95 hp and 100+* ft-lb torque**
Heads	Stock, Stage 2 "HammerHeads"
Cylinders	Bored Stock
Pistons	Flat Top 9.25:1
Head Gaskets	Cometic .030"
Cams	Andrews TW55 -or- S&S 570
Pushrods	Adjustable, SE -or- S&S
Air Cleaner	SE -or- K&N -or- Ness Big Sucker
Intake	Carb = SE intake manifold, ported
	EFI = stock throttle body, ported -or- aftermarket
Fuel Management	Carb = SE 44mm CV & Pingel petcock
	EFI = Tunable System
Ignition	Carb = SE
Clutch	Rivera Pro-Clutch
Exhaust	V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Examples of Twin Cam Package #3

Package #4	95" Hi Hp/Torque
*Approximately 100+ hp and 100+* ft-lb torque**
Heads	Stock, Stage 2 "HammerHeads", milled for proper compression
Cylinders	Bored Stock
Pistons	95" Keith Black 10.5:1
Head Gaskets	Cometic .040"
Cams	Andrews TW60G
Pushrods	Adjustable, SE -or- S&S
Air Cleaner	SE -or- K&N -or- "Forcewinder" -or- Ness
Lifters	HD w/limiters -or- SE -or- S&S w/limiters
Roller Rocker Arms #	SE -or- S&S -or- TP
Intake	Carb = SE intake manifold, ported
	EFI = stock throttle body, ported -or- aftermarket
Fuel Management	Carb = SE 44mm CV & Pingel petcock
	EFI = Tunable System
Ignition	Carb = SE
Clutch	Rivera Pro-Clutch
Exhaust	V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Final Drive #	Chain
Examples of Twin Cam Package #4

Package #5	95" Higher Hp/Torque
*Approximately 110+ hp and 100+* ft-lb torque**
Heads	Stock, Stage 3 "HammerHeads"
Cylinders	Bored Stock
Pistons	95" Keith Black 10.5:1
Head Gaskets	Cometic .040"
Cams	S&S 640G
Pushrods	Adjustable, SE -or- S&S
Air Cleaner	SE -or- K&N -or- "Forcewinder" -or- Ness
Lifters	HD w/limiters -or- SE -or- S&S w/limiters
Roller Rocker Arms	SE -or- S&S -or- TP
Intake	Carb = SE intake manifold, ported
	EFI = Large Aftermarket Throttlebody
Fuel Management	Carb = SE 51mm CV & Pingel petcock
	EFI = Tunable System
Ignition	Carb = SE or Tunable aftermarket
Clutch	Rivera Pro-Clutch
Exhaust	V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Final Drive	Chain
Examples of Twin Cam Package #5

Package #6	103" Stroker
*Approximately 110+ hp and 110+* ft-lb torque**
Heads	Stock or SE, Stage 2 or Stage3 "HammerHeads"
Crankshaft	SE Pro Stroker Flywheel and Rod Assembly
Cylinders	Bored Stock
Pistons	SE Stroker Pistons
Head Gaskets	Cometic .040"
Cams	Andrews TW60G + Gear-drive kit
Pushrods	Adjustable, SE -or- S&S
Air Cleaner	SE -or- K&N -or- "Forcewinder" -or- Ness
Lifters	HD w/limiters -or- SE -or- S&S w/limiters
Roller Rocker Arms #	SE -or- S&S -or- TP
Intake	Carb = SE intake manifold, ported
	EFI = stock throttle body, ported or larger aftermarket
Fuel Management	Carb = SE 51mm CV or S&S "G", Pingel petcock
	EFI = Tunable System
Ignition	Carb = SE
Clutch	Rivera Pro-Clutch
Exhaust	V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Final Drive #	Chain
Examples of Twin Cam Package #6

Package #7	113" "Bigger Bore" Stroker
*Approximately 120+ hp and 120+* ft-lb torque**
Heads	SE 103+ Pro heads, Stage 1 porting
Cylinders	SE Pro "Bigger Bore" 4.060"
Pistons	SE Pro "Bigger Bore" 4.060"
Cams	Andrews TW60G + Gear-drive kit
Pushrods	Adjustable, SE -or- S&S
Air Cleaner	SE -or- K&N -or- "Forcewinder" -or- Ness
Lifters	HD w/limiters -or- SE -or- S&S w/limiters
Roller Rocker Arms #	SE -or- S&S -or- TP
Intake	Carb = SE intake manifold, ported
Intake	EFI = Large (>53mm) throttle body
Fuel Management	Carb = Modified SE 51mm CV, Modified S&S "G", S&S "D", or 48mm Mikuni, & Pingel petcock
Fuel Management	EFI = Tunable System
Ignition	Carb = SE or aftermarket tunable
Clutch	Rivera Pro-Clutch
Exhaust	V&H Pro-Pipe, Thunderheader, or Supertrapp 2-1
Final Drive #	Chain
Examples of Twin Cam Package #7

Horsepower is an illusorymathematical equation. Torque is realand the source of allgood things in the world.

Horsepower
is an illusory
mathematical equation.
Torque is real
and the source of all
good things in the world.