Tag: ls1

LS1 main caps are identified by location and direction. Learn what the numbers mean, which way the main-cap arrows point, and how the caps are positioned before seating them in the block.

Before installing the cylinder heads, check the LS1 block deck for warpage. Our LS engine reference specifies maximum flatness of 0.004 inch within 6 inches and 0.008 inch across the deck.

Our OBD2 scanner review explains code readers, live data, bidirectional controls, and fitment so you can buy the right diagnostic tool for your garage.

Factory LS1 wrist pins use a press-fit connecting-rod arrangement, while many aftermarket combinations use full-floating pins and retaining locks. Learn how each design works and which measurements matter.

An LS1 crankshaft can look usable while hiding structural damage. Learn how magnetic-particle inspection helps reveal crankshaft cracks and why a cracked LS crank should be replaced.

LS1 crankshaft runout is checked at the No. 3 center main journal with a dial indicator. Learn how to measure crankshaft straightness, identify excessive runout, and determine whether an LS crank may be bent before assembling the short block.

Scratching an LS1 cam bearing during camshaft installation can contribute to reduced oil pressure. Learn how to properly lubricate, support, align, and guide the camshaft through the block without damaging the cam bearings.

LS1 camshaft end play should measure 0.001–0.012 inch. Learn how to check cam thrust clearance with a dial indicator and why aftermarket timing components can affect the measurement.

Learn which way the **LS1 connecting-rod chamfer should face**, why it must clear the crankshaft journal fillet, and how correct rod orientation helps prevent clearance problems during LS1 engine assembly.

LS1 piston-to-deck clearance is determined by **crankshaft stroke, connecting-rod length, piston compression distance, and block geometry**. Learn how these dimensions affect piston position at TDC and how to measure deck clearance during an LS1 build.