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Stefan's '63 supercharged 14-71 BBF Thunderbird

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Stefan's '63 supercharged 14-71 BBF Thunderbird  Empty Stefan's '63 supercharged 14-71 BBF Thunderbird

Post  RCKTBRD63 August 26th 2021, 2:34 am

Hi Team,

I am new here and registered to get some feedback on my BBF project that I am doing for my '63 Thunderbird.

I have a BBF engine here out of a 1973 Thunderbird and I got that 14-71 supercharger here that I got off Ebay some time ago.

Stefan's '63 supercharged 14-71 BBF Thunderbird  Whatsa11
Stefan's '63 supercharged 14-71 BBF Thunderbird  Whatsa10

My plan is to make as much torque as possible, with a power of around 600hp max. The engine has the C6 transmission as well.

What is a reasonable path to get there without breaking the bank?

This is the information I gathered here on this forum with respect to horsepower:
• 350 and you'll crap the stock cast pistons out
• if they survive 450 and you'll crap the stock car rods out.
• if that all survives the crank is good to about 800 if RPM's are kept down
• Block can go to 1200 with a 4 bolt conversion and some filler.
• I wouldn't try to boost a stock 460 your just asking to eat a piston

Does this apply also to the 1973 low compression 8:1 motors?

Looking to make a detailed list of all required parts and will document the entire process.

Thanks,
Stefan


RCKTBRD63

Posts : 10
Join date : 2021-08-24

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Post  Uglytruck August 26th 2021, 9:38 am

Welcome to the board!  The first thing I'd do is sell that 14-71 and down size to a 6-71.  The 14 is Waaaaaaaay to big for your needs. The engine build won't need much. Definitely forged pistons. A set of the CJ/truck rods with good bolts.  A mild cam and early timing set.  Some mild port work and a good valve job. Beyond that just a good rebuild.  600 hp with a blower will be very easy to achieve. Just my 2 cents Cool

Uglytruck

Posts : 44
Join date : 2009-01-05
Age : 66
Location : Sandy Oregon

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Post  RCKTBRD63 August 28th 2021, 6:41 am

Thanks for the reply! Well, parts over here (Europe) are hard to come by and I want that blower to turn slowly.

What modifications do you suggest on the gearbox?


RCKTBRD63

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Join date : 2021-08-24

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