How do I know if my Small Block Chevy uses a mechanical or electric fuel pump?
Documented on the Chevrolet Small Block 350 (sbc 350) build
Published May 27, 2026
Classic Small Block Chevy engines (carbureted) typically use a mechanical fuel pump mounted to the block driven by the camshaft.
Full Answer
Classic Small Block Chevy engines (carbureted) typically use a mechanical fuel pump mounted to the block driven by the camshaft. EFI conversions or modern setups may use an electric pump; inspect the existing pump location and fittings to confirm.
Documented In This Build
Related Knowledge
What torque should I use on the fuel pump mounting bolts?What should I check if the pump doesn't flow fuel after installation?How do I test for leaks safely after installation?Can I reuse old pump mounting bolts or gasket?How important is degreeing the cam?What torque sequence and values should I use for SBC heads?How do I set lifter preload or hydraulic lash?What should I do to prepare the engine for first start and break-in?
Related Parts
Mechanical fuel pump
Airtex (or equivalent)$45
Fuel pump mounting gasket
Fel-Pro (or equivalent)$6
Mounting bolts/studs and nuts set
$8
Fuel hose (3/8" ID recommended)
$12
Hose clamps (pair)
$3
Inline fuel filter
$10
Gasket maker / RTV or thread sealant
$5
Related Tools
Socket set / ratchet
Gasket scraper / razor blade
Shop rags / solvent
Fuel line wrench / open-end wrench
Pliers
Torque wrench
Related Videos
Small Block Chevy 350 Build Pt. 6 | This Is How It's Actually Supposed To Be Done
Small Block Chevy 350 Build Pt.3 | Filing rings and checking main clearances
Small Block Chevy 350 Build Pt.5 | Continued frustrations with rod clearances
Small Block Chevy 350 Build Pt. 11 | Installing the intake manifold and figuring out sbc nuisances
Small Block Chevy 350 Build Pt. 7 | Checking Crank Clearance and installing the rods.
Small Block Chevy 350 Build Pt. 8 | Installing Camshaft and timing components