Engine Internals & Performance Tuning

Chevy engine swap compatibility chart: small block, LS and LT share the bellhousing family but differ in crank flange, 24x or 58x crank trigger, fuel system and controls

Chevy Engine Swap Compatibility Chart 2026: Complete Guide

Which Chevy engines swap into what: shared bellhousing pattern, the LS short crank flange, 24x vs 58x reluctors, GM LS and LT1 E-ROD kit needs, and EPA/California rules.

Ring and pinion pattern chart: centered = no change; toward face, move pinion closer; toward flank, move it away; toward toe, add backlash; toward heel, reduce backlash

Engine Internals & Performance Tuning

Ring and Pinion Pattern Chart 2026: Complete Fix Guide

How to read a ring and pinion contact pattern: Spicer's face milled and face hobbed charts, Ford's pattern-movement rules, and Yukon backlash ranges by axle.

Winters quick change gear chart infographic: high and low gear fitting for set 16 on a 4.86 ring and pinion, example final drive ratios, formula and ordering prefix

Engine Internals & Performance Tuning

Winters Quick Change Gear Chart 2026: Official Ratio Tables

Winters' official quick change gear tables: every 10-spline 8500 Series set with 4.12, 4.57 and 4.86 final drives, plus 6-spline, 7-inch and Xtremeliner charts.

Holley accelerator pump cam chart: nine cam colors in Holley shot order, Black (lightest) to Yellow (heaviest), with cam numbers, 20-12 kit note and setup tips

Engine Internals & Performance Tuning

Holley Accelerator Pump Cam Chart 2026: Official Color Guide

Holley's official pump cam shot order, the number on every cam, what is in the 20-12 kit, which screw hole to use and how to set the pump lever.

Briggs & Stratton valve clearance chart: cold intake and exhaust gaps for Vanguard V-twin, vertical OHV and L-head engines, set 1/4 in past TDC

Engine Internals & Performance Tuning

Briggs & Stratton Valve Clearance Chart 2026: Official Specs

Intake and exhaust valve clearances for Briggs & Stratton L-head, OHV and Vanguard engines, taken from Briggs's own charts and repair manuals.

Engine Internals & Performance Tuning

SAE Certified Horsepower Meaning: Claimed vs Measured

SAE certified horsepower meaning, explained: what J1349 and J2723 require, why two sites show different figures, and how to find your engine's rating.