Seeing as how so many different parts of the Buick big block family were desirable depending on which year the engine was made I was wondering "What production components would you pick if you had your choice"? Now, obviously, Stage components will whip up all over normal production run stuff ... but Stage components are also really hard to find so I'd like to limit this to normal production options only. Although, we could also list components for a Stage Frankenstein (I've got dibs on the experimental 4-bolt main) if you'd like. :laugh: Here's what I've got so far: Code: [b]Component Years Part # Why it's so dang cool[/b] 455 Block 75-76 ?? Heavier construction than the earlier blocks, some oil mods already made Crankshaft ?? ?? Is there any difference? Buick changed displacement by enlarging the bores. Rods ?? ?? Pistons 70 ?? Smallest dish on any of the 455 pistons Cam 71 ?? NHRA says that there was an intermediate cam available with int=.430 exh=.468 lift Heads 67-68 1372963 Big port heads flow 5% better than other stock Buick heads, can be found on either the 400 or 430. 1382983 69cc combustion chamber is best of the non-Stage parts. 1382985 1382986 1384720 Rockers 67-69 ?? Ratio of 1.59 as opposed to the 1.55 that was available from 70-76 Intake 67-71 ?? 72 and up intakes are hurt by cast in Air passages Exhaust 67 1238094 R 2" runner for the #7 cylinder as opposed to the 1.5" used on all other years 1245433 L Carb 71?-76 ?? 800cfm Quadrajunk flows 50cfm more than the earlier 4 barrels. No 74 2 barrels for [b]you[/b]! Comments? Corrections? Major components I whiffed on? :spank: Credit were credit is due - Here's some of my reference sources: George's Exhaust manifold comparo George's Piston comparo Head Comparison NHRA spec sheets TA Performance Engine Info from 1953-1976 Buicks.net Casting numbers
alright, what is this crap that i can't make columns. vBulletin is forcing multiple spaces to be displayed as a single space. this suxors.
wow, i had forgotten how much editing text in a non-wysiwyg processor is a pain in my, err, butt. surely there must be a better way.
800 carb starts in 71 not 72 what, did that start in the middle of the model year? TA Performance says 72 was the first year. or was it like the 5/8" oil pickup ... an option on the Stage cars that became standard?
