The best cost effective choice for the performance minded Chrysler enthusiast. Convert your stock iron head to the 440-SR and your intake, headers, rocker shafts, rocker arms, valve covers, pistons, either domes or flattops, will work.

This is the most versatile head we have it is a bolt on 60 to 75 HP in stock form. A fully ported stock iron head isn't as good as a stock 440-SR. It can be used as a daily driver. Or in fully ported form to the max wedge size we have Dyno tested 670 HP at 500" on pump gas, the engine we built for Hot Rod TV. The 440-SR makes the perfect replacement head for bracket cars, and have a power upgrade tool!

FEEL THE POWER!

- 440-SR heads with Indy valves, no block or head milling, we use the following pushrod lengths:

- RB solid 9.750

- RB hydraulic 9.500

- B solid 9.000

- B hydraulic 8.750

- Roller cam pushrod length must be checked

- Best engine range 383" to 500"



ANSWERS TO COMMON SR QUESTIONS

- Fully prepped Mopar water bloc

- Uses stock sheetmetal valley pan with 1/2" end rail spacer or Indy valley plate 440-6 or 400-6

- Uses 440-10 external oil line kit

- Installation kit available

- Valve springs, hydraulic, solid, .700 roller Customer must supply cam specs

- Machined for stock rocker shafts

- Uses any aftermarket adjustable rocker from stock type head (906, 452, etc.)

- Stock 440 exhaust bolt pattern

- Intake port volume 265cc

- Intake volume is 65cc bigger than stock head

- Exhuast port volume 106cc

- Intake valve dia. 2.19-5.344 OL

- Exhaust valve dia. 1.81-5.370 OL

- Head gasket Fel-Pro 1009

- Head bolt - Manley 440-16

- Head studs ARP 440-17

- Combustion chamber volume 75cc

- Accessories holes in stock location

- Flat mill only .006 per one combustion chamber cc

- Can be milled to 62cc

- Indy roller rocker kit 440-4SR 1.5 or 1.6 ratio

- Valve guide 11/32 solid bronze

- Spring seats 1.550, can be cut to 1.625

- 3/4 reach gasket seat spart plugs

- Champion C57YC (cold) to C63YC (hot)

- Dome piston drop Y (C61C)

- All aftermarket intakes fit (except max wedge)

- Can port match to max wedge intake size

- Head bolt torque 70 ft. lbs.

- Rocker shaft torque 25 to 30 ft. lbs.