4‑Barrel Carburetor Base Gaskets — Square‑Bore (12834 / 13834) - SOLD EACH
Description:
high‑quality 4‑hole carburetor base gaskets for Holley 4150/4160, Edelbrock Performer, Carter AFB/AVS, and Demon square‑bore carburetors.
PART IDENTIFICATION
| Attribute | Details |
|---|---|
| Part Numbers (Stamped) | 12834, 13834 |
| Type | Carburetor base gasket (4‑hole) |
| Carburetor Pattern | Square‑bore 4‑barrel |
| Compatible Carburetors | Holley 4150/4160, Edelbrock Performer, Carter AFB/AVS, Demon |
| Material | High‑density fiber composite |
| Bolt Pattern | Standard 4‑bolt square‑bore |
| Openings | Four equal throttle bores |
📐 2. TECHNICAL SPECIFICATIONS
| Attribute | Specification |
|---|---|
| Throttle Bore Diameter | Typically 1‑11/16" (varies slightly by manufacturer) |
| Overall Length | ~5.625" |
| Overall Width | ~5.25" |
| Bolt Hole Spacing | 5.160" × 5.625" (standard square‑bore) |
| Thickness | 1/16" to 1/8" depending on brand |
| Heat Resistance | Rated for high‑temp carburetor base sealing |
| Purpose | Seals carburetor to intake manifold; prevents vacuum leaks |
🚗 3. FITMENT — VEHICLE APPLICATIONS
These gaskets fit any engine using a square‑bore 4‑barrel carburetor, including:
GM
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Small‑block Chevy (283, 305, 327, 350, 400)
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Big‑block Chevy (396, 402, 427, 454)
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Buick, Olds, Pontiac V8s with square‑bore intakes
FORD
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289 / 302 / 351W
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351C (square‑bore intake)
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390 / 427 / 428 FE (square‑bore intake)
MOPAR
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273 / 318 / 340 / 360 LA
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383 / 400 / 440 B/RB (square‑bore intake)
OTHER
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AMC 290–401
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Marine engines using Holley/Edelbrock 4‑bbl
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Hot rods, street rods, custom builds
Fitment is universal as long as the intake manifold is square‑bore, not spread‑bore (Quadrajet).
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Part Numbers: 12834 / 13834
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Pattern: Square‑bore 4‑barrel
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Material: High‑density fiber composite
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Fits: SBC, BBC, Ford V8, Mopar LA/B/RB, AMC, marine, and any square‑bore intake
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Condition: New old stock