1987 Chevy R20 Parts

Camshaft Type:

Hydraulic Flat Tappet

RPM Range:

2500-6400

Intake Duration (.050" Lift):

243

Valve Spring Style:

Dual Spring

Outside Diameter:

1.560"

Maximum Lift:

.750"

Intake Manifold Type:

Dual Plane

Carburetor Flange Type:

4-Barrel Square Bore

RPM Range:

1,500-6,500

Valve Cover Height:

3-3/4" tall. breather tubes measure 1-3/8" x 2-3/4" tall

Valve Cover Mounting Style:

Center Bolt

Material Type:

Aluminum

Intake Manifold Type:

Dual Plane

Carburetor Flange Type:

Dual: Square and Spread Bore

RPM Range:

Idle-5,500

Camshaft Type:

Hydraulic Flat Tappet

Intake Duration (.050" Lift):

227

Exhaust Duration (.050" Lift):

241

Camshaft Type:

Hydraulic Flat Tappet

Intake Duration (.050" Lift):

243

Exhaust Duration (.050" Lift):

257

Input Spline Quantity:

30

Lockup Compatible:

Yes

Stall Speed (RPM):

1900-2100

Attachment Style:

Bolt-on

Mount Material:

Steel

Bushing Material:

Rubber

Cap Type:

HEI / Male

Cap Terminal Style:

HEI / Male

Advance Type:

Mechanical and Vacuum

Material Type:

Aluminum

Finish:

Anodized

Sold in Quantity:

Each

Valve Cover Mounting Style:

Center Bolt

Material Type:

Cast Aluminum

Finish:

Painted

Outside Diameter:

7.3"

Groove Count:

1

Water Pump Style:

Short

Bearing Construction:

Tri-metal

Narrowed Bearing:

No

Sold in Quantity:

Set

Material Type:

Steel

Sold in Quantity:

Each

Piston Style:

Flat Top w/ 2 valve reliefs

Piston Material:

Hypereutectic Aluminum

Wrist Pin Included:

Yes

Outside Diameter:

6.60"

Groove Count:

2

Water Pump Style:

Short

Camshaft Type:

Hydraulic Flat Tappet

RPM Range:

1600-5800

Intake Duration (.050" Lift):

224

Outside Diameter:

6.1"

Engine Balance:

Internal

Fastener Style:

Stud

Thread Pitch:

7/16-14

GTIN Code:

672036001827

Mounting Side:

Passenger Side

Water Pump Style:

Short

Piston Ring Style:

C

Piston Ring Design:

Conventional

Sold in Quantity:

Set

Input Spline Quantity:

10

Input Shaft Diameter:

1.125"

Diameter:

10.5"

Dipstick Mount Style:

Firewall Mount

Sold in Quantity:

Each

Finish:

Natural

Collector Diameter:

2-1/2 Inch

Tooth Count:

168

Engine Balance:

External

SFI Rating:

Not SFI-approved

Diameter:

11"

Sold in Quantity:

Kit