I'm sure this is common knowledge, but what year did the /6 first appear?

Fall of '59 for the 1960 model year.

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Joshua

Thanks for the info! I am thinking of doing one for a H.A.M.B. dragster; now I know it'll fit the most important rule, being a pre-62 model engine.
Do you know what carbs were used prior to '63, and how available they would be today?

If the rules allow the use of a "dealer installed" Hyper-Pak set-up, you will have one fast combo that will be hard to beat.
The only other intake set-up used a 1bbl Carter BBS carb.
DD

I don't know how picky the H.A.M.B. judges might get, but the earlier blocks were three frost plug blocks. I think it was after '63 or '64 that the blocks started having five frost plugs in them.

(Doug would know the answer to that.)
BTW, Doug.....Was it 1962 for the hyperpak Nascar cars?

Roger

The 5 freeze plug block started in 1968

Some racing classes allowed the Hyper-Pak and cars set-up that way did well in those races.
DD

Howdy,

Substitutions for older equipment are typically not a problem when they are essentially the same piece. Thus none of the HAMBster builders so far have voiced any objections to the "five plug" blocks already in use.

The HA/GR class is designed around the spirit of the concept rather than the "letter of the law" and the block changes made no significant differences in performance for the slant. The later (improved flow) design heads however, would be generally considered inapropriate as starter material, even though your own head work is perfectly acceptable (and encouraged). Mixing & matching parts and doing your own work is part of the spirit too.

As Quads were quite uncommon in drag racing for the period they're frowned on in HAMBsters, however they're very acceptable in the SDRA spin-off class (the same for automatics, no for HA/GR and yes for SDRA). It doesn't have to be carbed with Chrysler factory products as popping on other carbs was the name of the game then. Heck, we're running a set of SU's.

Have fun.

_________________
Sex, drags, and rock & roll.
Dick, 225% crazy.
Hobby (cars, that is) Photos link

I was thinkin' about making a homemade three-one BBl intake; that ought to be within the intent of the class.

Yes indeed,

And it'd look great as well (I'm definitely a sucker for multiple carbs).

_________________
Sex, drags, and rock & roll.
Dick, 225% crazy.
Hobby (cars, that is) Photos link

There were a few factory street cars, that had 4 barrel carbs, prior to 1960.
I have a AFB 4 bbl on the shelf, which has numbers for Chrys products in the 1950's. At one time I owned a 1949 Packard with a straight 8 engine rated at 180 HP, I am almost positive it had a 4 bbl carb.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Quite true,

There were several quads manufactured and run prior to '62. You just seldom saw'em at the strips then, particularly on the inexpensive home built types of cars the HA/GR class is about.
This debate (includung early slush pumps) is what led to the SDRA spin-off class awhile back. Some of us build to the spirit of the class as it was and some to the spirit of the class as it technically could've been.

_________________
Sex, drags, and rock & roll.
Dick, 225% crazy.
Hobby (cars, that is) Photos link

Don't take this wrong. I am not arguing about the HAMB rules. I started racing in 1958. That year and 1959, I raced at Montgomery, NY. Just some cars I remember.
1957 chevy's dual quads and fuel injected.
59 Chevy 409, dual quads.
Mid 50's Golden Commando dual quads.
Studes with single 4 bbl, and Mccullag (sp) blowers.
56 Coupe Deville with dual quades and a stick on the floor.
Fords with 292 and 312's with singl 4 bbl dual, 4 bbl, and blowers.
All of these except the Caddy were "stockers".
Myself, I had a 41 Merc, with a 324 cid Flathead, with Hilborn injectors.

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

No sweat Charlie, I see my sentence doesn't read as I'd meant it, my "then" hadn't meant '62.

During the '50s things changed considerably. I was out here (Fontana, Lyons, etc.) in the late '50s and as you've noted, readily recall quads on the cars of them as could afford'em, and some puffers under'em then as well.

I believe I've inadvertantly misled some of you here. Sorry for the confusion, it's one of period.
Some of the engines we're allowed to run are technically later than the period we're representing. The HA/GR class is based on late '40s to early '50s (of course, some quads do go back that far) "rail" concepts, much prior to slingshot frames and narrowed rears, etc., with "The Bug" as their "Cover Car". Rather close to what a "speedster" was earlier still.

That we're allowed up to '62 on inline engines is due partly to an extension of the HAMB's basic '62 cut-off rules, partly the lack of significant changes in inliners 'til after then and partly for somewhat better parts availability. They're still the under square push-rod engines (and of course, flatties) of the period we like. The carbs of the Bug "period" were non-modular (mostly) as well, and most often were ganged for racing. Thus the spirit of the thing (and an attentive eye'll spot the early quad on the slant).

I expect I should apologise for not clarifying that before.

Early in the rules hash-out some folks had suggested various earlier cut-off dates. It was felt that that would too severely limit parts availability and raise the costs, so was voted down. In retrospect it'd have been better for "clarity of concept", but it would indeed have cost more to build in the class.

By the way Charlie, if you were any good with full mechanical F.I. you have a tip of my hat.

_________________
Sex, drags, and rock & roll.
Dick, 225% crazy.
Hobby (cars, that is) Photos link

Now I got it. The cars are actually more like from the 40's and early 50's.

I don't know how good, I actually got the FI working. I really didn't have any thing to compare it to. The car was all steel, full body (don't know how heavy). If I remember correctly, it was running mid 13's, and the "Super Stock" cars (57 2x4 283 Chevys, and 58 chevy 409 2x4 bbl) were running very low 14's (14.0-14.2).

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

get OUTTA here, CharlieS, you were at Montgomery back then?
My family is from Cormwall and before we went drag racing we went to Mongomery to watch road racing. We saw Dan Gurney in a birdcage there and Lance Reventlow with the fabulous Scarabs. I even wrote a newspaper article back in '65 or '66 lobbying for interest in making Montgomery a permanent track. (Although it was only published in the Cornwall Local!)