Posted ByBill the Vette Guy on April 09, 2003 at 14:12:18:
In Reply to: Re:interested in 69 BB tri-power from 427 posted byGregg on January 17, 2003 at 13:36:52:
: : : : Does anyone have any information on tri power? I came across a tri power induction for a big block chev. The number on the GM manifold is 3919852, the carbs are, 3659, 3659, 3660 holley two barrels. The set up looks pretty complete, air cleaner, thermastat housing & choke assembly even fuel lines. I've been told by some that it is worth a small fortune to restorers & not to use it but sell it as is. None of the jocks in my age group even know what it is let alone set it up! Some of the older guys with the vintage street tin say they were the best induction system ever made for the big block, others told me they were only for looks & lower rpm speed. An older guy at a local performence/machine shop told me they ran lean & melted pitons & were only made a few years. QUESTION...do these things work? Does any one hav any experience with one of these? Did they have problems or did they really work? I meen if they worked so great how come there not in use today, or are they? The manifold carbs looks cool for sure but even if it works bichen I'd still have to get bigger heads to fit it cause the big block in my short bed has oval ports. What is it worth if I want to sell it? If I did decide to use it some day is there anything that I should be aware of or need to know? They look like they function just like the 3310 on my big block except they have rubber hoses to the vacume pods for the secondarys. Any comments/suggestions would be much apreciated from those who have had experience with these carb set ups.
: : : I HAD THE SAME TYPE OF SET UP ON MY 70 SUPERBIRD WITH THE 440 ENGINE. THIS IS THE WAY TO GO IF YOU HAVE GOOD HEADS, VALVE TRAIN, AND EXAUST TO LET ALL THAT CARBURATION WORK. DO YOU WANT TO SELL IT? DENNIS DOCL78@aol.com
: : It is for a 1968 or 1969 Corvette big block. Depending on the condition and what parts are/are not missing. I will buy it if you don't want it. Thanks. Jerry JCraig3@cinci.rr.com
: There from a 69 vette 427 , excellent performance many have a problem getting them synced let me know what your asking for them.
That Tri Power set up will fit all Big Block Chevy's 66 to 80 something, the 396-454 BBs. It will only fit rectangular port heads but it is a great set up when working properly. The manifold alone is worth $1500.00 as they are very rare. The carbs can still be bought. Keep it or sell it but they are rare. They really look cool too.
That was an option on the 68 and 69 Vettes. It was for the 427 BB and developed 435 HP.
It will fit most any BB 396-454 of most any year with rectangular port heads. The manifold alone is worth $1500.00