427 Engine Guide: Chevy 427, Ford 427 and LS 427 Explained
A 427 is a 7.0-liter displacement, not a single engine. Here is how the Chevy big block 427, the Ford FE 427, the LS7 and modern small block 427 strokers differ, and which 427 crate engines
Liters to Cubic Inches: Engine Displacement Conversion Chart
One liter is 61.02 cubic inches. This chart converts common engine sizes both ways, explains why a 6.2 is called a 376 and a 5.0 is a 302, and shows how displacement is worked out from bore
2-Bolt vs 4-Bolt Main Blocks: Differences and Which You Need
Main caps hold the crankshaft in the block. Here is the difference between 2-bolt, 4-bolt, splayed and 6-bolt cross-bolted mains, when a 4-bolt main block is worth it, how to identify one, a
400 Small Block Chevy: Specs, History and 400 SBC Crate Engines
The 400 small block Chevy is the largest factory Gen I small block: 4.125-inch bore, 3.750-inch stroke, siamese cylinders. Here are its specs and quirks, how it compares with the 350, 383 an
347 Stroker Engine: Specs, Horsepower and Ford 347 Crate Engines
The 347 stroker is the small block Ford 302 stroked to 347 cubic inches with a 3.400-inch crankshaft. Here are its specs, how it compares with the 302, 331, 351W and 408, what to check befor
Boat Propeller Pitch and Size Explained: How to Choose a Prop
Propeller size is written as diameter x pitch. Here is what pitch means, how it changes engine RPM and speed, how to work out prop slip, 3-blade vs 4-blade and aluminum vs stainless props, a
Suzuki vs Honda Outboards: 2.5, 15 and 20 HP Compared
A side-by-side comparison of Suzuki and Honda four-stroke outboards in the sizes both brands cover (2.3/2.5, 15 and 20 HP): prices, versions, shaft lengths and the features each manufacturer
Inboard vs Outboard Motors: Differences, Pros and Cons
How inboard, outboard and sterndrive (inboard/outboard) boat motors differ: engine location, steering, trim and tilt, space, maintenance and repowering, with the pros and cons of each and wh
Parts of an Outboard Motor and How It Works
The three main sections of an outboard motor and the parts in each, what the lower unit, anti-ventilation (cavitation) plate, tiller and kill switch do, propeller diameter and pitch, and how
Outboard Trim and Tilt Explained: How to Trim a Boat
What outboard trim does, how it differs from tilt, a step-by-step method for trimming a boat on plane, how to set a manual trim pin, power tilt vs power trim and tilt, and which of our outbo