crossram question.....

Have an offy SBC crossram that I,ve had for 30 years.Who made the first one for the chevy?Offy ,Smokey,Chevy or someone else, and what year.Does anyone know?

 

Micket Thompson comes to mind. Used to see many of them

 

The '63 Grand Sport Corvettes used side drafts on cross-ram intakes.

 

1964 hemis had em
shelbys had em
chevy had em

good question
whos on first whats on second

 

^^The OP is asking which company made the 1st SBC crossram intake. M/T is a very good guess. Some of the ******** will have to step up to the plate.

 

m/t made em for chevys and for only a few years

 

sbc only info...

Edelbrock Vic Sr. began dyno tests on the brand new small-block Chevrolet engine in 1955. Several power-producing manifolds were the result, the first being the three-carb intake manifold that was featured on the cover of Hot Rod magazine. The six-carb Ram Log manifold for the street and strip was the next development. Then in 1958, Vic managed an industry first by getting one horsepower-per-cubic-inch from a 283 cid small-block Chevy with the new Cross Ram manifold. This breakthrough led Edelbrock to develop manifolds for Pontiac and Chrysler engines as well.
fussy aint we

 

It would seem word choice might be an issue with this question.

Going through aftermarket catalogues (I do not have all years)

Edelbrock

1959-60 - nothing
1962 - Log ram manifolds (6 x 2-bbl)
1965 - Log ram manifolds (both 6 x 2-bbl and 2 x 4-bbl)

Mickey Thompson

1962 - nothing
1965 - Power ram 2 x 4-bbl

Offenhauser

1962 - nothing
next Offy catalogue I have is 1970

Of course, there were the Chrysler O.E. stuff.

Jon.

 

Great info guy's! Seems M/T wins. So my offy is a newbie. gonna run it anyway! thanks y'all

 

This keeps coming up on here. You guys are talking about two completely different intake designs as if they are the same thing, just because in some cases the carbs are side by side instead of in-line. There are ram logs and cross-rams, and they are two completely different designs.
Ram logs have two separate plenums on either side of the engine that may or may not be connected by small p***ages, and crossed runners. They are not cross rams, they are ram logs. M/T Power Rams, early edelbrocks, and the long ram mopar factory intakes fall into this category.
Cross-rams have a common plenum that the carb/carbs bolt onto, with long runners crossing each other under the plenum. Intakes that fall into this category include the Edelbrock STR series, Rat Roasters, some of the Offy intakes, Smokey Rams, factory Z-28 cross-rams, Max-Wedge and factory Race Hemi intakes, and a number of Bud Moore Ford NASCAR intakes. Not all of these even use dual carbs.

 

The optional engine for the 1956 Chrysler 300B was rated at 355hp.

 

The first one was the Edelbrock X1 6x2 manifold. It was the first SBC crossram style manifold. Followed by the Mickey Thomson.

 

the offy still great but late 60s.......Mt likely is first to m*** produce. for sale..