| 14097092 |
BBC Cast Iron, Intake Manifold. For Large Oval Port Heads. This iron big-block 4BBL manifold will fit all 396/502ci
engines with large oval port heads. Use oil splash shield P/N 346243 if required. |
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| 03933163 |
BBC Aluminum, High Rise Dual Plane, Rectangular Port. Your big-block Chevy will breathe easy with this high-rise
aluminum intake manifold. This manifold’s dual-plane design produces impressive low-speed torque and plenty of
high-rpm horsepower. It can be used with high-performance cast iron and aluminum cylinder heads with rectangular
intake ports. The carburetor mounting pad is machined for a standard flange Holley four-barrel.
Technical Note: Used on LS-6 engine assembly P/N 366250 and 454 and 502 HO engine assembly. Ports do not
match Bow Tie cylinder head P/N 14044861-2 and symmetrical port head P/N 10051128-9. |
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| 12363420 |
BBC Aluminum, Oval Port. Will Accept Holley or Q-Jet Carbs. This high rise intake manifold (spread bore with dual bolt
pattern) is designed for all big-block Chevrolet 396/502ci engines with our current oval port aluminum heads for 1975
and earlier large oval port iron heads. This is the latest in design and technology in dual-plane manifolds. There are
no provisions for a hot air choke, but it will accept a divorced choke or electric chokes on the carburetor.
Technical Note: This manifold accepts air conditioning brackets and alternator brackets. It will not fit on
many Corvette models with manifold height 6” at rear and 41/2” in front. (Check for hood clearance first.) Use intake
manifold gasket P/N 12366985. Use intake bolt kit P/N 12367959. |
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| 12363421 |
BBC Aluminum, Oval Port. Will Accept Holley or Q-Jet Carbs. Same as P/N 12363420, except this has CNC Porting to
Gasket match. This high rise intake manifold (spread bore with dual bolt pattern) is designed for all big-block
Chevrolet 396/502ci engines with our current oval port aluminum heads for 1975 and earlier large oval port iron heads.
This manifold is the same as P/N 12363420, except we have “CNC” port matched this manifold with our oval port aluminum
cylinder head. This is the latest in design and technology in dual-plane manifolds. There are no provisions for a hot
air choke, but it will accept a divorced choke or electric chokes on the carburetor.
Technical Note: This manifold accepts air conditioning brackets and alternator brackets. It will not fit on
many Corvette models with manifold height 6” at rear and 41/2” in front. (Check for hood clearance first.) Use intake
gasket P/N 12366985. Use intake bolt kit P/N 12367959. |
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| 12363406 |
BBC Aluminum, Oval Port, Holley Carburetor Bolt Pattern. This manifold is used for GM aluminum oval port heads used on
all big-block Chevrolet engines with large oval port heads (1975 and prior), and all aluminum heads with oval ports.
This manifold includes the latest design in dual-plane manifolds and has a Holley carburetor bolt pattern. Use intake
manifold bolt kit P/N 12367959 which includes 16 bolts (8740 chrome moly 3/8”-16 x 1.5” with 3/8” hex head and 16
washers 5/8” O.D.), and manifold gasket kit P/N 12366985.
Technical Note: Manifold has a bolt pattern for air conditioner brackets, late model water neck, and
alternators. It will not fit production Corvettes, and it is necessary to check hood clearance on Chevelles. (Manifold
height is 4.45”.) This part is the same as P/N 12363420 except it is designed for use with the Holley carburetor. |
(Pic) |
| 12363407 |
BBC Aluminum, Oval Port, CNC Ported, Holley Carburetor Bolt Pattern. This manifold is the same as P/N 12363406 except
it has been “CNC” port matched for GM aluminum oval port heads used on all big-block Chevrolet engines with large oval
port heads (1975 and prior), and all aluminum heads with oval ports. This manifold includes the latest design in
dual-plane manifolds and has a Holley carburetor bolt pattern. Use intake manifold bolt kit P/N 12367959 which
includes 16 bolds (8740 chrome moly 3/8”-16” x 1.5” with 3/8” hex head and 16 washers 5/8” O.D.), and manifold gasket
kit P/N 12366985.
Technical Note: Manifold has a bolt pattern for air conditioner brackets, late model water neck, and
alternators. It will not fit production Corvettes, and it is necessary to check hood clearance on Chevelles. (Manifold
height is 4.45”.) This part is the same as P/N 12363421, except it is designed for use with the Holley carburetor. |
(Pic) |
| 12464482 |
BBC Aluminum, Ram Jet 502 Lower Manifold. This aluminum lower intake manifold is used on Ram Jet 502.
Technical Note: Use with upper manifold P/N 12464484, upper manifold gasket P/N 12489372, and eight bolts P/N
12490255. |
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| 12464484 |
BBC Aluminum, Ram Jet 502 Upper Manifold. This aluminum upper manifold is used on Ram Jet 502.
Technical Note: Use with lower manifold P/N 12464482, upper manifold gasket P/N 12489372, and eight bolts P/N
12490255. |
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