« on: October 31, 2013, 12:58:47 AM » Im rebuilding this 350 4-bolt main stock engine, just want to know if anyone knows how to tell if my rod bearings are standard size. Four-Cylinder Engines The Chevrolet 2.2L's — also known as the Vortec 2200 — rods have a center-to-center (c-c) length of 5.590 inches, weigh 530 grams and utilize 0.31-inch rod bolts. Connecting rod dimensions and construction can make the difference between a reliable racer and one that self destructs at the first sign of abuse. DZ 302. Size .001. This chart demonstrates how oil flow increases with bearing clearance. SBC Crank Main Caps and Rod Bolts. The factory specs include 2.450-inch main bearing journals and 2.100-inch rod journals, which means the target bearing … Any questions feel free to … THESE MAIN BEARINGS DO NOT FIT THE 400 SMALL BLOCK.. Set includes Rod Bearings for all 8 rods and a complete set of Mains. These bearings generally come in four sizes: standard, .010 oversize, .020 oversize and .030 oversize. The 350 HO engine incorporates modern technology in a package that can be installed in applications where 265-400ci small block Chevrolet V-8's were originally used. This complete engine is assembled using brand new, premium quality components. A large journal rod needs about 0.002- to 0.0025-inch clearance, but can be run at 0.0015–0.002 inch in OEM applications. A crankshaft bearing set consists of the main and rod journal bearings. Rod bearings 0.002 - 0.025" , side clearance 0.010 - 0.020" Main bearings 0.002 - 0.003" , 0.005 - 0.007 crankshaft end play Piston to head clearance 0.035 MINIMUM including gasket (steel rods), 0.060" MINIMUM aluminum rods Fit years 1968-2002. An increase of only 0.001 inch from 0.0025 to 0.0035 will increase the oil flow rate around the bearing … 350 engine - rod bearing size? Let's take the traditional 350 small-block as an example. These are the caps on the crankshaft. Clevite 1969-Up Chevy 302-350 H Series Main Bearings-Standard Size $97.99 Scat 350-3500-5700-20LW F43 Chevy Crankshaft 3.5 Stroke 350 Main 2 Rod Main bearing caps on 327 engines should be torque in two steps to between 60 and 70 lb-ft, while 350 engines should be taken to 75. The main bearings support the crankshaft in the engine block and the rod bearings support the connecting rods on the crankshaft. A small-journal rod bearing in a steel rod should be fitted at about 0.003 inch for a racing engine, but you can snug it down to around 0.002 inch in a street motor. I've sold hundreds of them. Chevy 350 crankshaft problems worn out connecting rod bearings This block is one of three displacements, 302/327/350, that underwent a crankshaft bearing diameter transformation for 1968 when the rod-journal size was increased from the 2 in (50.8 mm) diameter small-journal to a 2.1 in (53.3 mm) large-journal and a main-journal size that was increased from 2.3 in (58.4 mm) to 2.45 in (62.2 mm). Available in .001 Fits 327 (large journal), 305, and 350 cubic inch small blodk Chevrolet. Rod caps, or rod bearing caps, should be torqued to 45 lb-ft for the 327 engine and 35 for the 350 engine.