The 366 big block is one of Chevrolet's big block engines. The big block Chevrolet (BBC) was mainly used on school buses and medium-duty pickup trucks. Chevrolet ended production of the 366 BBC in the 1990s. The GMC Silverado 2500 and Sierra 3500 are two examples of pickup trucks that used the 366 BBC.
i jusy got a 366 c.i. bigblock chevy,just wanted to know how much it can be bored? looked up casting number,says heavy duty truck block thick wall cylinders,casting no. is364779.the stock bore is 3.935,can i find pistons for this,.090 or .120 over,and can it be bored out to a 396, thats 4.094.which is alot.worried about locating pistons if it cant be bored out to396,any help would be ...
A 366 big block Chevy usually had between 220 - 262 hp and the torque usually ran between 450-510 they were a very low end torque engine they were built for nothing else but pulling they were put ...
The Vortec 7400 L21 was a commercial version of the Chevrolet Big-Block engine used in the medium duty truck platform. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. It had slightly reduced power compared to the L29 454 and used a different PCM.
It is not worth it to build a 366 big block. You get the extra weight, and no more displacement. If it has the same stroke as a 454 (4.25", IIRC) then it must have a small bore. A small bore means less room for the heads to breathe, and that is not a good thing. FWIW, one of the magazines did a test of a 408 small block against a 408 big block.
Chevy-Big Block; Chevy 366 mpg modifications? Welcome to Club Hot Rod! The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. ... Chevy 366 mpg modifications? Ok guys this may be a little different then what yall are use to. I bought a 93 GMC topkick for $500, that came with a Chevy 366 bb.
The 366 Big block V-8 (6.0 L) gasoline engine was used only in Chevrolet Medium duty trucks and in school buses. It had a bore of 3.935" and a stroke of 3.760". This engine was made from the 1960s ...
I don't know anything about 366's except its a dump truck engine.A quick run through google produced this: A 366 big block Chevy usually had between 220 - 262 hp and the torque usually ran between 450-510 they were a very low end torque engine they were built for nothing else but pulling they were put into medium duty truck usually from 2 ton to 3 ton trucks.
Find great deals on eBay for 366 big block chevy. Shop with confidence. Skip to main content. eBay Logo: ... IS-77 BIG BLOCK CHEVY BBC 366 396 402 427 454OIL PUMP DRIVE SHAFT Made in USA See more like this. Chevy Big Block 7/16 Guide Plates and 7/16 Screw in Studs 366 396 402 427 454 .
a 366 was designed for heavy duty trucks and busses, so they are designed for making low end torque. really small bore, with the stroke of a 396/427. the crank is forged. 4 bolt mains- a lot of those engines had their main caps stolen to be put on a 2 bolt 454 block.