i was wondering if 330 heads and intake will bolt on to a low deck 276 hemi? the reason is i want a 4-barrel intake and better flowing heads and i happen to have a set of 330 heads and a intake. the only intake available for the 276 is to much $, and im still stuck with poor flowing heads.
oops misread it, well he should be able to trade it if its a hi deck 4 barrel, lodeck intakes are more available
Back in the late '60's, I had a "T" bucket with a 270 Dodge hemi with a four barrel. The guy at Carmichel's Auto Parts in Excelsior (we were pretty tight; I think I ws his best customer) called me and said he had a dual quad manifold for a Dodge if I was interested. $50 and an hour later it was mine. I wasn't aware of the lo-block hi-block differences than, and tore the original manifold of the engine after checking the manifold pattern against the new gaskets I had bought. Of course, you guessed it; it was a raised block manifold. Ports matched up OK, but it was about 4 inches to wide. I must have sat and looked at it for at least an hour trying to figure out if there was any way to make it work, which of course, there wasn't. Oh well, at least I had new gaskets to use when I put the old manifold back on. And, I later sold the dual quad manifold for $150, so all ended well. BTW, an 1800 pound bucket with a good runnin' four-barrel 270 hemi was no slouch.
Don't knock the low block heads - they flow pretty well given their age. For low down torque the slightly smaller runners will give a better response and it is only at the higher rpm's that there will be any noticeable differance. Its a 276 ci - not a 330 or 341/5 so it does not need to **** as much air - run with those heads.
A little bit of port/bowl work on the heads, an aftermarket aluminum intake, an upgraded cam, and you'll be surprised at what the little 276 will do. The breathing is really quite phenominal...
Desoto used different sized intakes for low and tall deck motors unlike chryslers where the tall deck heads were changed to use low deck intakes. I have a 276 with 341 heads but it has the small port low deck intake. I'm guessing a log intake is your best option.
Good thread. George & everybody else here who had good points: If the 330 heads work on the 276, could he make out with a '55 291-CID Fireflite four-barrel intake? Or, would it still take adaptors?
Aren't 276/291 intakes the same port size? I'm no expert. I can measure the 276 intake vs. the 341 heads next time I go to the shop if so.
The 276 "Firedome" only came with a 2bl intake. The '55 291, the last of the Low Deck Desoto engines, could be had with the "Firedome" 2bl intake, or the optional "Fireflite" 4bl intake...the only Low Deck 4bl intake. The '56 330, and '57 341 and 345 DeSoto's were High Deck engines...'57 being the last year for the DeSoto line of Hemi's. Both the 330 Adventurer 2X4 intake, and the 345 Adventurer intake (same part numbers) will not fit the 276/291 Low Deck engines. Yes, the 276/291 intakes have the same port size. Since the smaller size is on the intake ports, that won't cause any problems when bolted up to the 330/341/345 heads with larger ports on the heads...
One more quickie, weren't blower manifolds only made for low deck? If so, are they for the later big port heads?
The only Blower manifolds I know of were race only, and then I don't know if the were High or Low deck. If I had to guess, I'd say they were made for the larger cube engines...DeSoto, that is. I went ahead and made my blower intake from an Edmunds 2x2 intake and a Dyers blower base. Worked out like Factory...the DeSoto low deck in my Avitar...
Weiand made a very limited run of tall deck blower intakes that would mount a GMC 6-71 blower, a real nice pice with the "SAY WHY AND" logo.. Ive seen two for sale and the last one I saw went for over 2.5K. There was talk of one dude repopping one of these but he told me that guys were complaing about the $700 - $800 price. It did'nt go ahead as the numbers to make it cost effective were too low and people were *****ing about the price. **** for that price I'd buy two of them....ever try and FIND/BUY an original tall deck Weiand blower intake??? Rat
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