Page 574 - 2021-22 Auto Performance_Circle Track
P. 574
Carburetor Adapters MRG1932 Use adapters for adding a larger carburetor, or when rules require a 2bbl. carburetor on a stock
SB Chevy Fuel Pump Block-Off Plate MRG1515
Chrome-plated steel plate covers the block opening when
SB Chevy EGR Block-Off Plate
NEW! MRG7631
Chrome-plated plate includes gasket and hardware.
Cam Bolt Lock Plate Kit
MRG948G
Lock plate keeps camshaft gear bolts
from working loose, a potential cause
so that tabs may be bent against bolt heads
three grade 5 bolts.
Cam Button Spacers
Spacers prevent “walking”, a back and forth movement of the cam which causes erratic timing.
Part No. Description
Advance and Retard Cam Bushings
Kit includes four offset bushings for advance and retard, plus a 0° bushing so stock timing can be used again. Cam sprocket dowel pin hole must be drilled.
cast iron manifold.
Part No.
Description
MRG1929
Adapts Holley 350/500 CFM 2bbl. to Quadra-Jet 4bbl. Manifold
MRG1932
Adapts Square Flange 4bbl. to Quadra-Jet 4bbl. Manifold
MRG1933
Adapts Any 4-Bolt, 4bbl. to Any Small 4-Bolt, 2bbl. Manifold
or Any 4-Bolt, 2bbl. to Any 4-Bolt, 4bbl Manifold, Exc. Spread Bore
MRG1937
Adapts Any Large Holley 2bbl. to Any Rochester 4-Bolt, 2bbl. Manifold or Any Rochester 4-Bolt, 2bbl. to Large Holley 2bbl. Manifold
Throttle Return Brackets and Springs
Chrome-plated bracket and spring help ensure proper throttle return for added safety.
Part No.
MRG19 MRG3683
Description
Universal Dual Throttle Return Spring Kit Throttle Return Bracket, Large
Carburetor Bushing Kits
Reduces 1/2" throttle shaft linkage holes to 1/4" or may be used to replace the stock rub- ber bushing.
Part No.
MRG6026
Description
Carburetor Bushing Kit, Reduces 1/2" Hole to 1/4"
MRG1512
Carburetor Bushing/Pivot Kit,
Reduces 1/2" Hole to Accept 1/4" Dia. Throttle Rod/Cable
MRG1180
265-400 Chevy, Std. Sprocket with Flat Face Timing Cover, Early Style
MRG1183
265-400 Chevy, Std. Sprocket with Indented Center Timing Cover, Late Style
Carburetor
Linkage Components
MRG3812G
Assemble or customize carburetor linkage. Sold in pairs.
Part No.
MRG3811G MRG3812G
Description
Quick Disconnect Ball Joint, 1/4"-28 Thread Standard Female Rod End, 1/4"-28 Thread
Part No.
Description
MRG85
283-454 Chevy, 0°, 2°, 4°, 6°, 8°
MRG85B
283-454 Chevy, 0°, 1°, 3°, 5°, 7°
Holley Power Valve Block-Off Plug
MRG1510
Holley Fuel Bowl and Metering Block Gaskets
Crankshaft and Camshaft Keys
Offset crankshaft and camshaft keys increase torque and horsepower within a particular operating range.
Part No.
Description
Stock Replacement Crankshaft Keys, Chevy
MRG983G
SB 283-400 C.I., Long
MRG984G
SB 283-400 C.I., Short
Offset Crankshaft Keys, Chevy
MRG987G
SB and BB Short, Silver 2°
MRG988G
SB and BB Short, Copper 4°
and 2300 carburetors.
Part No.
MRG1509 MRG6183
Description
Fuel Bowl and Metering Block Gasket Kit, (1) Each Fuel Bowl Gaskets (5)
Low-Loss Fuel Fittings
and one clamp per part number.
MRG2965
Chrome-Plated Timing Tabs
Chrome-plated timing tabs are available in standard and adjustable pointer designs. Adjustable timing tabs simplify locating
true top-center so that super accurate ignition timing adjustments can be made.
Part No.
MRG2965 MRG2966
Description
3/8" NPT Straight for 3/8" I.D. Hose 3/8" NPT 90° for 3/8" I.D. Hose
Fuel Pressure Gauge Adapter
single fuel line applications. Gold anodized aluminum adapter has 3/8" hose ends and a 1/8" NPT female connection for fuel pressure gauge.
Part No.
Description
Standard Chrome Plated Timing Tabs
MRG4592
SB Chevy, 7" Balancer, Except Below
MRG4600
SB Chevy, 7" Balancer, 1977-Up
MRG4593
SB Chevy, 8" Balancer
Adjustable Chrome Plated Timing Tabs
MRG4597
SB Chevy, 7" Balancer
MRG4598
SB Chevy, 8" Balancer
Part No.
MRG2975 MRG1561
Description
MRG2975
Fuel Pressure Gauge Adapter
Fuel Pressure Gauge with 1/8" NPT Male Fitting
572 TRACK
CIRCLE 2021-22
