Talk:Chevrolet small-block engine (first- and second-generation)

message: When it comes down to it the Gen II engines share nothing in common with the (LS based) Gen III-V engines.  The SBC and the Gen II engines however have several key traits in common: Deck height, bore spacing, part interchangeability (namely rotating assembly), and basic block architecture (which is about as strong an argument as you can have).  This commonality clearly demonstrates SBC's and Gen II's very close relationship and warrants the Gen II's inclusion on this page.  When it comes down to it, the Gen II engines are nothing more than modified SBC engines.
Now I know in the process of moving the Gen II section, I might have messed something up.  I was forced to rename the LS based engines to something and all I could come up with was Gen III-V small-block (LS based GM small-block engines seems a better choice to me).  There shouldn't be too much of an issue calling the Gen V engines LS based after all Deck height, bore spacing, part interchangeability (namely rotating assembly), and basic block architecture is shared with the Gen III and IV engines; the Gen V engine are not exactly clean slate designs. 
Gulielmi2002 (talk) 17:30, 28 December 2015 (UTC)
thread_title:  Gen II section moved to the SBC page 

message: Zora Duntov's name should be highlighted - I think the engine was his brainchild; lightweight everything, especially the valvetrain. (I once read that Duntov believed taking weight out was putting power in.)  Duntov's solid lifter camshaft in a 302 or 327 was the definitive, street racing engine in the day.68.79.183.55 01:15, 3 September 2007 (UTC)
replies: text: Please mind the swearing per WP:Cussing. This is wikipedia, not cusswords.com. Thanks. Nickmullen (talk)  —Preceding undated comment added 04:07, 8 October 2013 (UTC)
thread_title: Zora Duntov

message: The power numbers listed under the 305 for 1976 to 1979, with the exception of the first entry, are absolutely outrageous.  The 305 never produced that much power in those years.  Also, what's the 332 supposed to be about?  If there's no verification of the existing numbers, I'll eventually change the chart. --King V 15:13, 4 April 2006 (UTC)
replies: text: this entire section is full of grammatical errors, lacks a single citation, and includes genre-specific non-traditional abbreviations such as "mod's" and what not.  Not fit for wiki standards.  I will correct some of the grammar, but i am not an expert in the engineering of this engine, nor able to verify or cite any of the sources for the facts this section claims.  Skiendog (talk) 21:17, 21 April 2009 (UTC)
thread_title: 305

message: hi, i added the L69 HO to the 305s. just know numbers and years of the f-bodies, someone might fix that and get the numbers for monte, caminos, etc.. thanks Renizer 21:59, 27 May 2007 (UTC)
thread_title: L69

message: Someone needs to add info for the 307. DCEdwards1966 15:04, Oct 21, 2004 (UTC)
:Isn't that an Oldsmobile V8 engine --SFoskett 15:39, Oct 21, 2004 (UTC)
::Not that I know of. It was used by Holden in 1968 for a year or so before they got their own 308 V8 in production. You could choose either a 307 or 327 small block. Heres some info I found The optional '5-litre' V8 was actually a 307 cubic inch (210bhp) Chevrolet ('small block') unit with a Rochester 2-Jet (two barrel) carby and was initially offered only with Powerglide automatic transmission. --Grover9 12:35, 22 Nov 2004 (UTC)
replies: text: Actually a 3.385" stroke. Also used in RWD G-body Oldsmobiles and Buicks--King V (talk) 20:21, 1 April 2009 (UTC)
thread_title: 307

message: I added the LO3 305 TBI engine under the LG4.  The LG4 was under the 350 heading, which is wrong because it is a 305, so I moved both under the 305 heading.
=== L03 ===
imho it's called L03 .. it appears to be a common mistype on the internet since most rpo indexes or lists are scanned on OCR and therefore didn't recognise the 0 clearly..
same goes for the L05 Renizer 20:41, 8 May 2007 (UTC)
thread_title:  LO3 

message: imho it's called L03 .. it appears to be a common mistype on the internet since most rpo indexes or lists are scanned on OCR and therefore didn't recognise the 0 clearly..
same goes for the L05 Renizer 20:41, 8 May 2007 (UTC)
thread_title:  L03 

message: Under the table on the right - do we really need the Applications?  There's so many for some variants (like the 350...even the chassis list alone, without getting into the individually branded versions, gets absurd: F-Body, Y-Body,whatsssss upppp!!! B-Body, and C/K/G-series trucks / SUVs / vans from 1969 onward to at least 2000. Ayocee 12:21, 12 December 2005 (UTC)
replies: text: I agree.  It seems like it'd either always be lacking something, or otherwise just too messy, not to mention that it almost might be easier to say "everything" under some motors.  I'd be in favor of its removal, if I were asked.--King V 18:46, 4 August 2006 (UTC)
thread_title:  Applications 

message: Well, I only noticed this because of an edit (which accidentally deleted a topic heading, and then was later reverted).  But is what 152.163.100.132 said true, that the picture is actually of a first-gen Oldsmobile V8?  It seems like it, particularly judging from the angled, front-mounted oil-fill tube.  Can anyone confirm?  If so, does anyone have something more appropriate to put in place of that image? --King V 19:26, 4 April 2006 (UTC)
thread_title:  Poor choice of Hot Rod Magazine cover? 

message: The article on small blocks should incorporate the small block's relative - the V6-90 (which is still in production as the Vortec 4300).  Externally, the V6-90 is a 3/4 scale small block without the #3 and #6 cylinders.  V6-90s used split-pin crankshafts (production motors) and the same 5.7" connecting rods with a larger journal of 2.25", along with a smaller oil filter mounting pad (the SBC uses the traditional large pad for years).4.230.54.61 08:41, 1 October 2006 (UTC)
replies: text: It seems to me that it's more appropriate to put information about the 90-degree V6s based on the Chevrolet small block in their own article rather than making a lot of references in this one.  Maybe a specific Chevrolet V6 page should be created, as the Vortec 4300 page only partially covers the information, and makes only passing reference to the 200 or 229 V6s--King V 02:21, 3 October 2006 (UTC)
thread_title:  Chevrolet V6-90 (Vortec 4300 et.al.) 

message: Surely someone out there has a picture of a stock gen 1 small block that could be used at the head of the article. I have a few, but they are all painted non-stock colours or are just very unsightly. Does anyone have a picture of a clean, stock small block that could be posted? Craigblock 18:25, 2 September 2007 (UTC)
thread_title:  We need a picture! 

message: I believe that the first LT1 was used for longer than 1972, as I had a 1976 Type LT Camaro with an LT1 in it.  It even said so inside the engine compartment.  Also, I had heard that's what the LT in Type LT stood for.
:Got any sources that indicate as such?  Perhaps a build sheet?  The Type LT had absolutely nothing to do with the engine options, as it was possible to order the LT trim with or without the RS and Z28 packages. Ayocee 20:22, 22 October 2007 (UTC)
replies: text: Unfortunately I was just barely a young adult (18), and got rid of the car when it became to expensive for me to fix.  This was 16 years ago, so maybe time has fooled me, but I do remember conversations with friends who were into muscle cars, and the topic of my engine being an LT1 came up, and I remember opening the hood to see the plate with the engine type on it.  What did the LT in Type LT stand for, by the way?  [wrecked-sodapop]  —Preceding unsigned comment added by 154.20.71.99 (talk) 08:00, 22 November 2007 (UTC)
thread_title:  1976 Type LT Camaro 

message: This article is on the "Generation I" small-block Chevrolet designed GM engine, not successor "small block" GM V-8s built on different engine blocks. Please see the several efforts throughout the article to maintain this distinction and provide internal links to the appropriate pages for the GM "Generation II" LT and "Generation III" LS engines. Please add any photos and content pertaining to those latter engine families on their own pages, not this one dedicated to the engines based on the original 1955 block design. Wikiuser100 (talk) 14:26, 8 March 2009 (UTC)
thread_title:  Generational confusion 

message: i reorganized the engines into families based on bore size of the proginator of that family.  there is some common know which is the basis for this.  basically all engines in each family can be proven that they have a relation to eachother by two ways: 1. the ability of one engine being overbored to the size of the larger member's bore (e.g. the 265 to the 283 and the 262 to the 305), and 2. the sharing of casting numbers between engines within their family (e.g. the 302, 327, and 350 share many casting numbers with eachother like 3970010 off the top of my head; the sharing of casting numbers between the 262 and the 305; and the sharing of casting numbers between the 283 and 307).  engines that shared nothing with other blocks were placed into their own families like the 400 which the block itself is physically different from any other small block and the 267 which bore and year it appeared means that it couldn't be the proginator of any other engine and therefore unrelated to other engines.  now to address the question "unrelated" the fact that all the engine that are Chevy small blocks can interchange parts (e.g. crankshaft, connecting rods, and heads and so) does mean that they do have a strong relation (externally they all look the same), but the family organization was put into place to show that many engine have an even closer relation to eachother besides part interchangability.  the mortech web sit with the casting number data is block for me so i can input that but it can be varified if you have access to it.  Gulielmi2002 (talk) 21:44, 18 September 2009 (UTC)
thread_title:  New Organization into families 

message: It seems to me the latest edit to this section was made by someone that seems to think a smaller bore motor can easily outperform a 350. Any hotrodder will prefer a 350 to a 305. I think the edits should be reverted. DennisM83 (talk) 23:27, 11 August 2010 (UTC)
thread_title:  305 V 350 

message: "By 1957 it had grown to 283 cu in (4.6 L). Fitted with the optional Rochester mechanical fuel injection, it became the first production engine ever to make one horsepower per cubic inch." May not be so as in 1956 Chrysler produced several engines with over one hp/cuin including the 355hp 354.  —Preceding unsigned comment added by 68.148.235.98 (talk) 20:49, 10 November 2010 (UTC)
thread_title: One HP per cuin

message: Should a small section be added about the special small block in the Grand Sports?  — Preceding unsigned comment added by Toneron2 (talk • contribs) 01:33, 5 February 2011 (UTC)
thread_title:  Grand Sport engine should be added? 

message: Specifically, where is the LT9 covered here? Just because performance is the main player in the collector car hobby doesn't exclude the smog-era SBC's from the reference books. Cudak888 (talk) 17:47, 5 July 2013 (UTC)
thread_title:  Incomplete - does not cover non-performance SBC variants. 

message: This entire section needs to be revised.  The 262 was NOT called the 265.  The 262 did not use the same engine block as a 305.  The 305 used a larger 3.736" and should be in a section with that bore diameter.  Further there is no mention of the L99 4.3L V8, which shared the same 3.736" bore as the 305.  It was soild only from 1994-96 in Chevrolet Caprices.  If no one fixes this, I will have to do the edits at a later time.  Caprice 96 (talk) 04:15, 31 May 2014 (UTC)
thread_title:  3.671 Family Section 

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thread_title:  External links modified 

message: It would be good to have a Marine Section to reflect the engine's use in marine applications. Brand new small block engines are readily available in short block, long block and completed engines. They are available in carbureted and fuel injected configurations, in standard and counter rotating versions and are used in original equipment by many boat manufacturers as well as replacement engines. The manufacturers specifically address applications of straight inboard, v drive inboards, inboard-outboards, jet drives and air boat installations. They are available from such OEM's such as Marine Power, Mercruiser and Volvo Penta just to name a few. Marine Power's advertising emphasizes the fact that these are original, new GM engines and urges the reader to not accept imitations.
It would be good to focus on the similarities and differences of the engines in automotive and marine applications. Some of the differences would include counter rotating engines, high mounted starters, multi filter oil filters and cooling systems just to name several items.
It is my understanding that Marine Power has acquired the rights to the Chris Craft engine line, which is regarded as one of the best gas marine engines produced. I am sure they could produce a brand new Chris Craft engine for a fair price.
This discussion would hold for large block engines as well. 
--Captjayman (talk) 01:22, 4 April 2017 (UTC)
thread_title:  Marine Application 

message: It isn't a small-block and shares no parts with the Gen I or II
The LT5 should be its own separate article, and should also be mentioned under the development section of the Northstar's article.  — Preceding unsigned comment added by 2601:86:400:8FD0:98F6:E5F1:EEF6:C1D1 (talk) 03:32, 24 August 2019 (UTC)
thread_title:   Should the LT5 even be in this article? 

message: In the last paragraph before the "Overview" section...
"All Chevrolet small-block engines shared the same firing order that is 1-8-4-3-6-5-7-2 until the introduction of the 5.5 L LT6 engine for the 2023 Corvette Z06, which has a firing order of 1-4-3-8-7-5-2 due to its use of a flat plane crank."
...the firing order for the 2023 Z06 is missing cylinder #6. 2603:8000:5B00:7427:55DA:CE78:BA6F:1298 (talk) 02:53, 6 February 2023 (UTC)
thread_title:  Firing order error 

message: Should aftermarket-only bore and stroke combinations be included, especially in the top infobox? To me this should be a reference of factory engines. If a later section is used for non-factory configurations it would be more appropriate. 2601:18B:300:5780:E846:85FF:DF00:3237 (talk) 12:24, 12 November 2023 (UTC)
thread_title:  Aftermarket specs