Produktbeschreibung
440-SR
Answer to common Sr questions
- Uses stock sheet metal valley pan with ½_ end rail spacer or Indy valley plate (# 440-6 or 400-6)
- Uses 440-10 external oil line kit
- Installation kit available (440-9, 440-10, 440-16)
- Assembled heads come with Valve Springs that are good for hydraulic flat Tapped Camshafts.
- Optional other springs for solid, or roller cams good up to .650_ lift are availeble.
- Recommended 10 degree locks for solid or roller cam
- Customer must supply cam specs
- Machined for stock rocker shafts
- Uses any aftermarket adjustable rocker from stock type head (906, 452, etc.)
- Indy's roller rocker kit (440-SR 1.5 or 1.6 ratio)
- Stock 440 exhaust bolt pattern (raised exhaust port, may need custom headers)
- Accessoryholes in stock location
- Intake port volume 265cc
- Intake volume is 65cc bigger than stock head
- Exhaust port volume 106cc
- Intake valve diameter 2.19_ - 5.344_ overall length
- Exhaust valve diameter 1.81_ - 5.370_ overall length
- 75cc combustion chamber volume (heart shaped)
- Flat mill .066_ per combustion chamber cc
- Can be milled to 62cc
- 2_ spring height, spring seats, 1.550_, can cut 1.625_
- Can port match to max wedge intake size
- Head gasket: Fel-Pro #1009
- Head bolts: Manley #440-16
- Head studs: ARP #440-17
- Valve guides 11/32 solid bronze
- ¾ reach gasket seat spark plugs
- Champion C57CX (cold) to C63CX (hot)
- All aftermarket intakes fit (modify to max wedge)
- Head bold torque 70 ft. Ibs.
The best, most cost effective choice for the performance minded Chrysler enthusiast just got better. It now features a new more efficient heart shaped chamber. Convert your stock iron head to the 440-SR and your intake, rocker shafts, rocker arms, valve covers, pistons (either dome or flat top) will work. The 440-SR is the most versatile head Indy has to offer. It is true bolt on 60 to 75 HP in stock form. Even a fully ported stock iron head is not as good as a stock 440-SR. The use of the 440-SR range from a daily driver toa 670 HP 500_ cid on pump gas /with heads in fully ported form with the 440-1 max wedge intake port opening). The 440-SR also makes a perfect power upgrade replacement head for bracket cars.
Long Valve Design - Feel the power!
- Rocker shaft torque 25 to 30 ft. lbs.
- 440-SR heads with Indy valves, no block or head milling, 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_
