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Bolt in lump installation instructions

How to install HI-FLOW lump kits
Standard HI-FLOW kit
Lump Port Installation
Tools Needed:
3/8 allen x 1/2 ratchet drive to drive Allen bolts in head
3 Drill bits: 9/32 for counter sinking Holding  bolt
                11/64 for #8 bolt through the head
                #29 for drilling hole to thread in lump
To cut Flush Bottom hole for head bolt: 25/32 End mill bit (or) 1/2" Cap screw counter sink/bore
1/2" Pipe tap
#8 Screw Tap


Premium HI-FLOW kit
Premium Lump Port Installation
Tools Needed:
3/8 allen x 1/2" drive socket to drive Allen bolts in head(long reach)
2 Drill bits: 9/32 for counter sinking Holding bolt
               Sized bit for #6 screw through the lump into the head       
To cut Flush Bottom hole for head bolt: 25/32 End mill bit (or) 1/2" Cap screw counter sink/bore
1/2" Pipe tap
#6 Screw Tap

Tips:

1. Do not install into a intake port that has been ported. Lump will not fill up port.
2. When milling flat spot for 1/2"cap bolt in head. Mill to same level as lower lip of intake port. No deeper.
3.Only torq 1/2"cap bolt to 85-90 lbs.
4. Seal plugs with Ultra Black RTV.
5. Port head after lump installation.
email if questions tom@12bolt.com
or call 319 310-6920
Tom Lowe

Tips:

1. Do not install into a intake port that has been ported. Lump will not fill up port.
2. When milling flat spot for 1/2"cap bolt in head. Mill to same level as lower lip of intake port. No deeper.
3.Only torq 1/2"cap bolt to 85-90 lbs.
4. Seal plugs with Ultra Black RTV.
5. Port head after lump installation.
email if questions tom@12bolt.com
or call 319 310-6920
Tom Lowe

 

  • Home
  • Store
    • Valve Covers
    • Side Covers
    • Performance Cylinder heads and Parts
    • Exhaust
    • Accessories
    • Alternator and Power Steering
    • NOS GM Inline 6 and V8 Parts
    • Turbo Related
    • Bolt In Lump Kits
    • Breather Adaptors
    • Pistons
    • Rods
    • Intakes
    • Mounts
    • Timing Covers
    • Engines
    • Camshafts
    • Shortblocks
    • Engine Stands
    • Harmonic Balancers
    • Bearings-Gaskets-Oil Pump
    • Torque Plate
    • Distributor Blueprinting
    • Carburetors
    • Air Cleaners Used
    • Vehicles
    • 12 Bolts and Parts
  • Inline 6 Articles
    • Me and My Turbo
    • Sissell Literature circa 1988
    • Sunset Chevy
    • 2 HP Per Cubic Inch
    • Cotton Perry
    • Six Abuse
    • Six In a Row Makes it GO
    • Soup of the Day
    • Stovebolts Storm Again
    • Stovebolt Storm Part 2
    • Straight Six Shooter
    • The Buzzin Half Dozen
    • Turbo Tornado
  • Lump Head information
    • General Head Information
    • Inline cylinder head flow
    • Bolt in lump installation instructions
  • Services
  • Gearing Calculator
  • Photos
    • 12 Bolt Pics
    • Inline 6 Pics
    • 292 Turbo EFI
    • Shop Tour
  • Videos
    • 12 Bolt
    • Inline 6
    • Customer Cars
  • Links
  • Tech Tips
  • Wanted
  • About Us
  • Contact
  • Inline Engine Build Ideas
  • Jacob's Journey