destroked 290 crank

Oh sure it's fun to talk turkey and dream about smashing a few more unsuspecting Chevy or Ford enthusiasts with a wild and crazy AMC combination... meanwhile... back to reality...

Get a copy of AMC's book named "Performance American Style".

For the price, the engineering advice is priceless and good engineering never goes out of style.

...I really shouldn't say anything more than that because I have no intention to insult or defraud the business reputation of any of my fellow hot rodders in the AMC world. (we are smarter and stronger when we work together as a team)

Seriously, get the book, read it -learn the truth 'straight from the horse's mouth' -as they say.

AMC's book is a great way for beginners to learn because it takes a 'bottom up' educational stance, beginning with the basics and ending with general concepts for building an 8000 rpm race engine.

For an excellent Internet article on crankshafts, I would also recommend EPI:

http://www.epi-eng.com/piston_engine_technology/crankshaft_design_issues.htm

EPI's article on piston motion is also exceptional, nevertheless avoiding the many nuances of combustion which would plausibly triple the length of the article.

It all boils down to established scientific truths with world leaders each in their own respective fields of racing leading everyone else by their razor sharp cutting edge innovations; look to NHRA Top Fuel or Funny Car, NASCAR or Formula One race engine technology for cream-of-the-crop top shelf inspiration.

The #1 problem with the concept of making a destroked version of an otherwise stock 290 crank is that the angle drilled lubrication passageways to the rods will be moved to sides of the crank pins and lose their ability to lubricate the rod bearings correctly, thus defeating the entire purpose... assuming the purpose is not determine how long the engine will run without acceptable rod bearing lubrication provision... -D.T.

Interesting that the AMC came out in mid 66 , the new Buick engines came out in 67 ?? Was it copied or what are the odds ??? David Buick and Charles Nash knew each other way back.

The front timing cover and oil pump was used from 1961 on.
The Buick 215 aluminum V8 and 198 V6 both had it.

So the idea pre-dates the Gen 2 AMC V8 by 5 years.

Boris Badanov wrote: The front timing cover and oil pump was used from 1961 on. The Buick 215 aluminum V8 and 198 V6 both had it. So the idea pre-dates the Gen 2 AMC V8 by 5 years.

Forgot about the early mid 60s stuff.

amc67rogue wrote: Interesting that the AMC came out in mid 66 , the new Buick engines came out in 67 ?? Was it copied or what are the odds ??? David Buick and Charles Nash knew each other way back.

Both the buick and AMC timing covers were originally made at Dohler Jarvis in Toledo. I saw them hanging like trophys in the lobby way back in the day. DJ probably had as much to do with the design as either one of them.