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#UP231022

CORVETTE STYLE EXH MANIFOLD

Blemished
Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
Specially modeled after 1962-63 327 Corvette manifolds

$67.99

/each

In Stock

$90.99

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Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information.

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Product Summary

Steel, Natural, Square Port Flange Style

Blemished
Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
Specially modeled after 1962-63 327 Corvette manifolds
Will work on most small blocks up to 1999
To be uses with 3 bolt header reducer/collector
Has 2-1/2" diameter outlets and comes with provisions to accept original alternator type bracket
They are the perfect addition to a retro 327 style build

See more details

Key Specs

MFG. Part #	UP231022
Brand	Speedway Motors
Garage Sale Type	Blemished
Finish	Natural
Collector Diameter	2-1/2 Inch

See more specs

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Ineligible for Return

Contains items that cannot be returned

Installation Details

Installation Tips

Both the left and right sides include a mounting boss on the front of the manifold. If it is not required or needed, it can be machined off if necessary by the end user / installer.
Ports measure 1-5/16” side to side and top to bottom Has sufficient material for porting/matching to your head.
If using on original '62-'63 Corvette:
- Generator mounts on passenger side (right side, 4.5" bolt centers)
- Water tank mounts on drivers side (left side, 3.5" bolt centers)

These manifolds will bolt onto the Chevy small block engines up until the advent of the LS series engines in 1999. They are copy of the stock 62-63 Corvettes where the passenger side manifold is cast with the boss for the generator and the drivers side is cast with the mounting boss for the water tank. This is reverse of the later years and the possibility of adapting to different accessories such as the A/C compressor would be up to the installer. These are specific to the 62-63 Corvette for accessory mounting. No issues with high compression engines have been noted.

These manifolds will work with the standard port small block Chevy engines. Fit to your application can be verified by some basic measurements as follows: * A” dimension from the head to outer edge of the collector flange is 4-1/32” * Center of head mounting bolt to bottom of collector flange is 4-3/16” * Center of head mounting bolt to highest point of manifold is 2-3/4” * Right Manifold: Accessory bolt boss center-to-center is 4.5" * Left Manifold: Accessory bolt boss center-to-center is 3.5" The outlet is directly below the center two ports on the head. You will need to verify clearance on your steering and cross member for exhaust hook up.

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Speedway Motors UP231022 Details

Garage Sale Product

This is Garage Sale priced due to cosmetic imperfections. The item functions as originally intended but is discounted due to the blemishes. The photos above will show the imperfections.

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

These "rams horn" cast iron exhaust manifolds were patterned off the 1962-63 327 Corvette but are not OEM remanufactured manifolds (no casting numbers). They feature the big 2-1/2" diameter outlets and have provisions to accept original alternator type brackets. They are the perfect addition to a retro 327 style build: 365hp L76, 375hp L84, or 350hp L79 (all came with 2-1/2" outlets).

These Chevy ram horn manifolds are copies of the original1962-63 Corvette manifolds and can be used on almost any small block engine up to 1999. The cast in brackets are for the water tank on the drivers side and generator bracket on the passenger side. These can be cut off and smoothed per customers preference. These are a square port configuration with 1-5/16” top to bottom and also side to side. Compare to your head port size for compatibility.

Modeled after 1962-63 327 Corvette manifolds
Works on most small blocks up to 1999
2-1/2" diameter outlets
Use with 3 bolt header reducer/collector
Sold each, specify right or left.
Both L and R sides include alternator boss
Gaskets and bolts/hardware are not included

Specs

9300327-L

Header Dimension A: 4.00" Manifold Dimensions (GIF)
Overall Length: 20.25"
Overall Height: 6.50"
Center to Center: 3.50"
Collector Diameter: 2.50"
Notes: Center of head mounting bolt to bottom of collector flange is 4-3/16", to highest point of manifold is 2-3/4"

9300327-R

Header Dimension A: 4.0313" Manifold Dimensions (GIF)
Overall Length: 21.00"
Center to Center: 4.50"
Collector Diameter: 2.50"
Inlet Size: 1.3125"
Notes: Distance from head mounting bolt to collector flange bottom is 4.1875". Center of head mount to highest point is 2.75".

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Speedway Motors UP231022 Specifications

KEY SPECS
MFG. Part #	UP231022
Brand	Speedway Motors
Garage Sale Type	Blemished
Finish	Natural
Collector Diameter	2-1/2 Inch

GENERAL
Material Type	Steel
Flange Style	Square Port
Gasket(s) Included	No
Hardware Included	No
Sold in Quantity	Each
Notes	These do not include gaskets or bolts. Distance from head mounting bolt to collector flange bottom is 4.1875". Center of head mount to highest point is 2.75". Ports measure 1.31" square
Header Dimension A	3.85"
Header Dimension B	5.30"
Header Dimension C	18.50"

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