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245 265 Impulse Race Heads
Produces up to 100hp more and costs 30% less than typical race heads
Impulse race heads are fully rebuilt cast-iron heads which are modified with our advanced air flow technology to produce 30% more torque and horsepower per dollar than ported aluminium heads or rebuilt cast-iron heads offered by other businesses.
245 265 Impulse Race Head Specs and Features
- Open Chamber
- 9:1 Compression Ratio
- High Flow Intake and Exhaust Ports
- Unshrouded Intake and Exhaust Valves
- Hardened Exhaust Seats
- Special 4 Angle Valve Job
- Special Pocket Porting
- HD Valve Springs (up to .550" lift)
- Valve Spring Retainers (chromemoly)
- Positive Valve Stem Seals (all rubber 2 ring type)
- Valve Stem Collets (hardened with reduced shoulders)
- K-Line Valve Guides
- Height of Valve Guides reduced to allow .550" lift
- Hi-Tensile Manifold Studs and Nuts
- New Brass Frost Plugs
- Cleaned and Crack Tested
245 Valves
- 1.96" Flat Head Intake
- 1.50" Tulip Head Exhaust
265 Valves
- 1.96" Flat Head Intake
- 1.60" Tulip Head Exhaust
| Impulse Engine Technology
P/L |
PO Box 986 Randwick NSW 2031 Australia
Ph: (02) 9398 5544
Fax: (02) 9398 5644
International: Ph: +(612) 9398 5544
Fax: +(612) 9398 5644
Email Us
Inventor of Negative Pressure Supercharging
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