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#996---- HR Series of Super Small Blocks | 12/31/2008 |
Announcing:
Super Heavy-Duty and Racing cylinder blocks
For Small Block Mopar
These blocks are what dreams are made of. The HR-1 is basically made for strictly racing applications with roller bearing cam bearings, optional lifter angles, optional main bore sizes, extra head bolt bosses (for 14-bolt heads).
Wanna build a 482 cubic inch small block!!!!! You need one of these babies!
The HR-2 is designed more for passenger car-type parts
Note: These are not Mopar Performance engine blocks.
HR-2 Engine Blocks
- All 5 Main caps are 4-bolt, steel billet with studs.
- Siamesed cylinders, 4.220 bore possible, comes with 3.900 bore (4.150 bore optional)
- Priority oiling to main bearings (oils the main bearings before the lifters)
- 9.600 block height, finished (standard 340-360 ht)
- Covered cam tunnel (on the bottom to reduce windage), like NASCAR Blocks
- 360 LA oil pan is utilized
- Oil pump, OEM-style on rear main
- Lifter alignment as good as CNC
- Line-bored .002 under final size
- 360 or 340 main size available
- Lifter angle, 59. 59 is standard pass. Car
- Head bolts, std LA pattern, 10 Bolts
- Cast and machined in the USA
- Sleeve-type cam bearings (pass car)
- Accurate lifter alignment (Good as CNC!)
HR-1 Engine Blocks
This is a race block not generally for passenger car parts, such as heads and camshaft
These are the differences:
- Main bore can be sized to 340, 360, Chevy or Ford size.
- Cam bearing bores are machined for roller-type cam bearings.
- Optional lifter angles: 45, 47, 48
- Head bolt pattern has extra outside boss for 18-bolt heads.
- Covered Cam tunnel (Nascar ® Style.)
- 340, 360, Ford or Chevy Main sizes
- Uses OEM style oil pump
- 45º, 47º, 48º, or 59º lifter angles available
- Extra outside bosses for 18 bolt cylinder heads
- Roller type cam bearings required
- Accurate lifter alignment (Good as CNC!)
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