Benefits of a tall deck BBC vs. reg deck BBC ??
#1
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Benefits of a tall deck BBC vs. reg deck BBC ??
Are there any benefits to running a "tall deck" block compared to a regular deck-assuming everything else is the same-cam, heads, bore and stroke?
Thanks for your responses!
Bob G.
Thanks for your responses!
Bob G.
#2
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if you are comparring apples to apples the only thing i can think of is most of the newer tall blocks are newer,heaver and have a higher nickel content in the block,making them alittle tougher and durable.
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Tall deck is for generally used for longer strokes to create more displacement. A tall deck is needed so you can run a longer rod to make a more favorable rod to stroke ratio, the lower the ratio the less side loading there will be on the cylinder walls thus reducing wear. being able to run a longer rod will allow the piston to dwell at tdc and bdc longer which helps with evacuating exhaust gasses and intaking more air fuel mixture. You can also run a more favorable compression height on the pistons a bigger compression height which will allow for a more stable piston.
Either way you have .400" to play with, do with it as you please.
Either way you have .400" to play with, do with it as you please.
#6
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Thanks for the responses. So I can assume that when I build my 540 (4.5 bore 4.25 stroke) I will get the same power from my current block (regular deck), instead of buying a tall deck. You guys just saved me money!!!
Bob
Bob