Talk:Chevrolet big-block engine

Engine code references

I'm proposing that all engine code references in this article (and the Small Block article) have the hyphen removed. For example, "LS-5" would become "LS5".

My reasons are: (1) none of the books or articles I have read on Corvettes ever use the hyphen, and (2) Googlers don't either and this otherwise excellent article is therefore not found. Gtc131 03:50, 4 December 2007 (UTC)

Looks better.... thanks! —Mrand ^T-C 16:53, 4 December 2007 (UTC)

Hmmm... the LT-1 and the LT 1 are two very different engines ::: —Preceding unsigned comment added by 201.234.237.138 (talk) 20:01, 23 July 2008 (UTC)

Undid of removal of section regarding Dick Slosar

Not like discussing the Ford 351 Cleveland and omitting reference to Bob Glidden. — Preceding unsigned comment added by 75.97.232.1 (talk) 03:33, 19 February 2013 (UTC)

No attempt needs to be made to list every emplyee; this man hand fabricated these extremely rare parts. —Preceding unsigned comment added by Toneron2 (talk • contribs) 04:10, 11 December 2007 (UTC)

I wasn't really clear. The problem is that one person doing some hand fabrication for one car is not really notable (see WP:NOTE) for an encyclopedia. Nor does his employment record further the understanding of big-block engines. For good or bad, this type of thing is something countless others have done on numerous other cars - it's something that is done all the time in a manufacturing environment. However, if you can find a VALID source for this claim, then obviously it is notable and we can keep it. Otherwise I'm afraid it needs to go.—Mrand ^T-C 20:39, 12 December 2007 (UTC)

Removed —Preceding unsigned comment added by Toneron2 (talk • contribs) 22:55, 16 December 2007 (UTC)

Introduction is embarrassingly POV

The L72 427 was available in the 1969 Camaro from the factory, and in fact are much more common than ZL1s. They were called COPO 9651

The Introduction is embarrassingly POV and provides an unnecessary commentary on how Chevrolet obtains the horsepower rating. --KJRehberg (talk) 23:47, 20 July 2008 (UTC)

I don't understand what the above quoted sentence has to do with the intro POV. While I agree it would be good if the POV of the intro was toned down (and sourced), I also think it is worth a mention that the horsepower numbers from that era were measured gross, and hence can't be directly compared to net. Definitely no need to use the word "salt." —Mrand ^{Talk • C} 14:51, 15 August 2008 (UTC)

Suggesting the full use of the "Mark" and "Gen" designations for Big-Block Chevrolet Engines

What happened to the "Rat" motor nickname? — Preceding unsigned comment added by 75.97.232.1 (talk) 03:31, 19 February 2013 (UTC)

The article shows a difference for "W" series and "Mark IV" series BBC engines. The issue I have here is it doesn't paint the whole picture for BBC engines. The "W" series is actually known as the "Mark II" engine. From my knowledge the term "W" is a nickname. GM produced four "Mark" engines. The Mark I and III engines were never put into production, but do deserve reference in the article. The Gen V engines were produced for the 1991 through 1995 model years and Gen VI engines from 1996 on. If GM differentiates between these engines as such, shouldn't this article differentiate also? I have several references in book form which could help in this endeavor:

• Tom Currao (1997). How to Build & Modify Chevrolet Big-Block V-8 Engines. MotorBooks/MBI Publishing Company. ISBN 0-7603-0203-0.
• Mike Mavrigian (2001). Rebuilding Gen V/Gen VI Big-Block Chevy Engines. HPBooks/The Berkley Publishing Group. ISBN 1-55788-357-2.

Does anyone have an objection to making these changes and additions? Paulster2 (talk) 22:10, 20 December 2009 (UTC)

Paulster2, go for it! Referencing those sources in the article would be a great help. Have fun, —Mrand ^{Talk • C} 16:18, 21 December 2009 (UTC)

Correcting some errors above: Mark I = 348/409 Was only referred to as "Mark I" after "Mark II" was produced. Mark II = 1963 Daytona 500 "Mystery Engine" Typically 427, but other displacements were tried. Never released for production. Racing use only. Prototype of Mark IV. Mark III = Packard V-8 tooling and production rights were considered for purchase by Chevrolet. Project did not proceed. Mark IV = 366/396/427/454 etc, 1965--1990. Development of Mark II. Gen 5 = 454/502 1991--1995 Revision of Mark IV Gen 6 = 454/502 1996--2000 Revision and improvement of Gen 5 Gen 7 = 8.1L 2001--2009 (?) Revision of Gen 6 with substantial changes. — Preceding unsigned comment added by 208.107.89.85 (talk) 01:24, 10 April 2012 (UTC)

End of the big block

Here's info that should be added:

REPORT: Last GM big block engine rolls off the line

roguegeek (talk·cont) 22:09, 22 December 2009 (UTC)

502?

I've worked in the engine remanufacturing business for 30 years on marine, truck and auto apps. and can attest that the earliest 502 I've seen or heard of was a 1990 Gen 5 engine. I've never seen nor heard of a MK4 502 factory engine. If it isn't cited, shouldn't it be stricken?

Aluminum 510 cubic inch engine

In the late 1970s, Chevy had a performance parts catalogue. In it was listed an all-aluminum 510 cubic inch engine intended for race applications only. In 1980, I inquired at a dealership parts department as to the availability of the engine and was told that it had been discontinued roughly (at that time) six month ago. If memory serves me, the price (in 1980 dollars) for the block alone was $2,000. tganos@earthlink.net —Preceding unsigned comment added by 67.142.163.34 (talk) 04:44, 21 July 2010 (UTC)

Origin of the 402

The 402 came about when GM "recycled" a bunch of slightly defective 396 blocks by boring them out. When the recoverable 396 blocks were gone is when GM made the 402 a regular production engine. I suspect the original 396-but-really-402 engines were the bored out 396 rejects. Should be verifiable by casting numbers, if any of those "396" engines are still around. Bizzybody (talk) 10:10, 14 December 2011 (UTC)

no oil getting to head oil pump working

ran engine no oil getting to head oil pump working possibly blockage were to find — Preceding unsigned comment added by 67.181.22.110 (talk) 22:42, 22 April 2012 (UTC)

Staggered Valves

This might be a stupid question, but how many valves does the 396 V-8 have? I'm guessing a normal 16 valve total: eight intake, and eight exhaust. I saw a photo of the 396 with its staggered valve arrangement, and it didnt make sense to me, until I finally read somewhere about its so-called staggered valve arrangement. Althought its still not making sense. An overhead view, absent any specific knowledge, it would look to the novice like one side of the engine has three two-valve cylinders, and two one-valve cylinders. Which is ridiculous, but again, I had never heard of the so-called staggered valve arrangement. Marc S. 206.192.35.125 (talk) 13:22, 8 March 2013 (UTC)

missing information on the L88

This article compares several engines to the L88, but doesn't establish anything about the L88 beforehand (or at all, for that matter, except indirectly). Can an expert take a shot at putting together at least a paragraph, so the references to it aren't orphaned quite so badly? --Fru1tbat (talk) 01:02, 22 January 2015 (UTC)