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Tech Talk => Engine Mechanical / Electrical => Topic started by: vwagon13 on March 26, 2016, 02:03:23 AM

Title: Bbc 505...?
Post by: vwagon13 on March 26, 2016, 02:03:23 AM

I've an opportunity to buy a really nice Carrera  open bow I/O, thru broker. Add is saying "505" Chevy.... 502 I know,but 505? Anyone familiar w/ them or build them and how are they? Maybe it's a typo error. I'll Google too. Thanks gentlemen!

Title: Re: Bbc 505...?
Post by: Lopes on March 26, 2016, 05:54:24 AM

It's a stroked 454. I thinks it's about as big as you can get with a standard deck 454. My buddy runs one in a 70 Camero and it flys. Not sure if that helps you


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Title: Bbc 505...?
Post by: jimpen on March 26, 2016, 08:06:03 AM

Quote from: vwagon13 on March 26, 2016, 02:03:23 AM

I've an opportunity to buy a really nice Carrera  open bow I/O, thru broker. Add is saying "505" Chevy.... 502 I know,but 505? Anyone familiar w/ them or build them and how are they? Maybe it's a typo error. I'll Google too. Thanks gentlemen!

. Standard deck bored 100 over with a 4 1/4 crank.


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Title: Re: Bbc 505...?
Post by: Onthenos on March 26, 2016, 08:08:03 AM

I bet it's a typo.

Title: Re: Bbc 505...?
Post by: crewchief22 on March 26, 2016, 10:31:52 AM

If it's an original 502 that hasn't been rebuilt I'd say you're pretty safe.  If it's in fact a 505 or custom built stroker, I would recommend getting as much info as possible about the build, builder and parts used before dropping much money on this one.

Title: Re: Bbc 505...?
Post by: 86caribbean on March 28, 2016, 12:33:40 PM

This engine combo consists of a .100 over bore on a 454 block standard 9.800 deck, with a 4.250 stroke crank to achieve a 505 ci BBC. Also built typically with a 6.385 (.250 longer rod) to achieve a rod ratio of 1.50.  I built one of these engines for a marine application for a customer a few years back.

Title: Re: Bbc 505...?
Post by: lupo1904 on March 28, 2016, 02:06:25 PM

My 505" is a tall deck. 100 over.


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Title: Re: Bbc 505...?
Post by: Flusher on March 28, 2016, 06:26:32 PM

Quote from: lupo1904 on March 28, 2016, 02:06:25 PM

My 505" is a tall deck. 100 over.

Did you run longer rods?  6.585?  Did the pin break into the oil ring?

Title: Bbc 505...?
Post by: lupo1904 on March 28, 2016, 07:10:42 PM

Not sure, Bostick could tell you. Crower billet maxi lite .400 long rods. Just got it freshened up and went from a 427 tall deck to a dart block 10.2


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