1981 Chevy K20 Parts

Overall Length:

.75"

Thread Pitch:

1/4"-20

Wrench Type:

Allen

Rocker Arm Ratio:

1.6:1

Stud Diameter:

0.38"

Valve Spring Style:

Dual Spring

Outside Diameter:

1.55"

Rocker Arm Ratio:

1.5:1

Stud Diameter:

0.38"

Overall Height:

5.375"

Material Type:

Steel

Finish:

Zinc Plated

Valve Spring Style:

Standard

Outside Diameter:

1.26"

Maximum Lift:

.550"

Oil Pump Volume:

High Volume

Oil Pump Pressure:

Standard Pressure

Material Type:

Steel

Overall Length:

1.50"

Outside Diameter:

.63"

Material Type:

Steel

Overall Length:

.801"

Material Type:

Aluminum

Rocker Arm Ratio:

1.5:1

Stud Diameter:

0.38"

Throwout Bearing Style:

Flat Face

Sold in Quantity:

Each

Sump Style:

Wet Sump

Sump Location:

Rear

Rear Main Seal Style:

1-piece

Port Height:

2.21"

Port Width:

1.34"

Cap Type:

HEI / Male

Advance Type:

Mechanical and Vacuum

Cap Type:

HEI / Male

Advance Type:

Mechanical and Vacuum

Gaskets Included:

No

Sold in Quantity:

Set

Material Type:

Steel

Adjustable:

Yes

Finish:

Natural

Cap Type:

HEI / Male

Advance Type:

None

Material Type:

Steel

Sold in Quantity:

Kit