So much for insults...  

366 and 427 tall deck are internal balance the same as 396 and 427 pass.I have to comment on the cute fart canners,Initial vehicle weight 2500lbs 6" monster tach- 8" fart muff 4-12's w/3 lb magnets 6 monitors................    do they have stroker kits for the added weight? Having to much fun here,I agree as most people know that some import brands are in some areas more efficently designed I don't argue that.Most kids can't afford to pump one up because they're paying $200 a month insurance so what I run across on the street looking for a short race is fart cans and monster tachs. :      WIEDER  

I've built the 525, and have it sitting in my garage.  

The build-up is detailed at http://forums.corvetteforum.com/showthread.php?t=1964495&highlight=525+bbc  

Many thanks for the balance info! Been down this road before, and it's a real kick to the beans to rip out a freshly installed tranny after you figure out you got the wrong flywheel.
About the same time the balance info was posted here, the moderator on the Mcleod Clutch forum gave the part numbers for the 12" clutch, the pressure plate, and the flywheel. Here's the link to the thread if you need those numbers http://www.mcleodind.com/forum/showthread.php?t=455



Vehicle: 1994 Chevy Silverado 2500 4X4 extended cab long box

Engine: 1990 Chevy 366 Tall Block from a school bus.

Trans: Chevy P/U truck 5 spd. from early '90s 1500 4X4

No mods in mind, emphasis on keeping all the oe electronics, especially the computer on the 366. Trying to mimick the bus setup.

The goal here is to build a cheap, capable towing machine. I'll post updates if anyone's interested.  

Just ordered the exhaust manifolds, and still working on getting prepped for the swap. Waiting on engine mounts, and still investigating clutch setups.

Any opinions on Zoom clutches? Here's what I am looking at, http://store.summitracing.com/partdetail.asp?part=ZZZ%2D30014&view=16383&N=700+4294908216+4294865886+4294860743+4294908178
More to come.  

I have a question to add here, how much HP and Torque do you think a 366 with a Holley Double Pumper and headers could make? I'm wanting to use it to make a mud buggy and wondered if I'm wasting my time or not?  

Wasting your time? Of course you are!

We don't even need to look into benchracing theories of bore to stroke ratios, just look at the final displacement...

We aren't dealing with heavily restricted engines here because we know that even with near-stock heads a 454 can easily make 1+ horsepower per cubic inch, so do some grade school arithmetic. Let's say that the 366 can make 1.15 horses per cube, so that's approximately 420 horsepower. Now, let's make only 1 horse per cube with a 454 and make make 450+ horsepower.

Sure the smaller engine will have the potential to make more specific output to a certain extent but eventually the induction will be limited by the physical size of the cylinder it has to fill and besides with near-stock motors we will never push these limits so I suggest getting a larger engine.  

bbc stuff...i just gotta give my 02...


the 366td is only good for its crank and rods...throw the rest in the garbage...

the 427td IS conducive to a performance build..only if you take into consideration the .400 deck height and the pain you might/will have with header fitment...especially if you go with aftermarket heads that feature raised exhaust ports (+.600 is average)..IMHO if you are going to go all out (with a bbc) DO NOT purchase std exh port location heads anyways as you are leaving HP/TQ on the table..all dpends on your hp goals...??why build a bbc and spend $$ if its gonna go 550hp...unless you go "poor boy" style...then thats attractive

anyways back to block talk,

4.375 is the largest you can fit without alot of grinding and camshaft to rod bolt issues..i am not saying you cannot fit larger just a point of diminishing returns ( a long stroke 525 is appealling...but the piston speeds climb real fast,thus limiting performance use to a truck.preferably with dual rear wheels (lol).

correct.you cannot bore to 4.5.dont waste you time and money with a sonic check...might go to .125 if core shift is at minimum...have you ever gotten a price on a +.125 overbore job?big big bux when done right...

the most feasable/easy combo would be a 496ci/+.250 rod.Or a 505/511.again this is with 4.25 stroke.4.350 bore (+.100 over)4.375 stroke (+.375 from 454 based 4.00) =520 cubes.then ya gotta think?all that weight swinging around for an extra 26 cubes...

throw that 3.76(366/427) crank in a used 502 (std 4.470),cleaned to 4.500 or 4.530...big /easy Hp numbers when cammed correctly...will go to 650 hp easy on ported 990s and a 264 @.050 roller camshaft(if thats you style/needs)
"cubic inches are king...but RPM makes the world go round"


later guys

alan

ottawa ontario canada

ps:sorry for long post!  

to naughty dodge04

yeah im reading and totally agree...the japanese make some great HP numbers.short stroke, lightweight parts very efficient heads/ports(a honda head goes 300cfm easy)and large valve/curtain areas per /cubic inch.

8hp/cubic (yes 8!)  is where we are at(maximum limits) in the american drag racing(turbos) market right now...