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Engine - Block Braces We're pretty sure that when Toyota designed the 20R or 22R series engines, they didn't have a 185 + horse powered engine in mind. Over the years however, LCE has developed a fu … Read more

Engine - Block Identification 1975-1980 20R: Deck Height 11.280" (Pan Rail to Top of Deck) Deck Height 9.120" (Crankshaft Center to Top of Deck) Stock Bore 88.5MM - 3.484" Max Overbore 90MM - 3 … Read more

Engine - Benefits of Crank Scrapers During normal engine operation a significant amount of oil adheres to, or becomes entrained in, a cloud surrounding the spinning bottom end. This oil eats up the h … Read more

Engine - Proper Deck Heights Blocks & Heads Whenever you go through an engine or cylinder head re-build, there will be some amount of "re-surfacing" that has to be performed to either the block or … Read more

Rocker Arm Tech Notes The rocker arm of an internal combustion engine changes radial movement into linear movement. This kind of device is properly called a reciprocating lever. It takes the spi … Read more

Head Studs vs Head Bolts Believe it or not, there is a huge difference between using a cylinder head "stud" and a cylinder head "bolt." Factory head "bolts" will eventually stretch and pull out of … Read more