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$1,006.95
$792.99
Edelbrock 61989 LS1 Pro-Port Cylinder Head, Chevy 4.8,5.3,5.7,6.0L
Edelbrock 61989 LS1 Pro-Port Cylinder Head, Chevy 4.8,5.3,5.7,6.0L

Edelbrock 61989 LS1 Pro-Port Cylinder Head, Chevy 4.8,5.3,5.7,6.0L

Chevy LS V8, Bare Cylinder Head Style, Aluminum, Natural, Not CNC-Machined Runners

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Edelbrock 61989 LS1 Pro-Port Cylinder Head, Chevy 4.8,5.3,5.7,6.0L
Edelbrock 61989 LS1 Pro-Port Cylinder Head, Chevy 4.8,5.3,5.7,6.0L
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We estimate this item will ship on or before September 28th.
Part # 32561989
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$792.99
$1,006.95
each
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 4 business days for Edelbrock to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Cylinder Head Style:
Bare
Material Type:
Aluminum
Finish:
Natural
Combustion Chamber Volume:
38cc
Combustion Chamber Volume Range:
30cc - 39cc
Combustion Chamber Style:
Double quench
CNC-Machined Runners:
No
CNC-Machined Combustion Chamber:
No
Spark Plug Style:
Angle
Intake Port Shape:
Cathedral
Intake Port Location:
Standard
Exhaust Port Location:
Standard
Intake Valves Included:
No
Intake Valve Angle:
15
Exhaust Valves Included:
No
Valve Spring Included:
No
Damper Spring Included:
No
Machined for O-Ring:
No
Valve Seats Machined:
No
Valve Seat Material:
Ductile Iron
Valve Stem Seals Included:
No
Valve Guides Included:
Yes
Valve Guide Material:
manganese bronze
Locks Included:
No
Retainers Included:
No
Guideplates Included:
No
Rocker Arms Included:
No
Rocker Arm Studs Included:
No
Rocker Arm Nuts Included:
No
Oiling Style:
Through Pushrod
Heat Crossover:
No
Steam Holes Drilled:
No
Accessory Bolt Holes Drilled:
Yes
Notes:
Uses 14mm spark plugs with 3/4" reach, and flat gasket seals
Sold in Quantity:
Each
GTIN Code:
085347619894

Info

These heads provide head porters with the extra material needed in the ports and combustion chamber for greater flexibility when developing CNC port programs, allowing engine builders to take full advantage of GM's LS series potential.
  • For Professional Cylinder Head Porter
  • 38cc Chamber Size
  • As-Cast Casting Has Small Ports And Chambers
  • Max Valve Size is 2.08 Int and 1.64 Exh
  • LS 1 Style 15-Degree Valve Angle
  • Enough Wall Thickness For CNC Machining
  • Seats and Manganese-Bronze Guides Included

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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