Thread: What are the pros and cons of short/tall deck?

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Hope this doesn't sound like a dumb question,but some say get a short deck others say tall deck.

What are you going to do with it ? Any more info ?

Pat should be along soon

Oh why I am here a short deck is for passenger car engines. The tall deck is for truck blocks.

how big do you want to go? max cid for a short deck 582 max on a 10.200tall deck 638 cid this is for world /dart/ donovan / brodix etc. i will add you could get more but it would be very $$ with a 4.630 and 4.875stroke is 656 cid on the tall deck and you could stuff a 4.500 crank in a short deck for a 606.(i would not try this) stock block gm short deck max 526and the tall deck 556 both are at a .125 bore that is a lot for the stock short deck and have seen thicker bore on the tall decks maybe a 4.437bore and 4.625 stroke 572 cid or a 4.500 bore and 4.500 stroke 572 or 588 with a 4.625 crank

Will the short deck get up the rpm's quicker?

Originally Posted by BigTruckDriver

Will the short deck get up the rpm's quicker?

no. less your mass is the faster it will rpm .that has alot to do with that and i never think much how fast some thing can rpm when it makes over 760 of tq

Originally Posted by BigTruckDriver

Will the short deck get up the rpm's quicker?

I.M.O.,I would build a 540 to 565 9.80 low deck.
If you go much larger than the 565 you will have to look at 18*, 14.5*, or 12, 11* cylinder heads,intake,shaft-mount roller rockers and it get's rather pricey if you are really serious about making hp.

come on erick they do good and the 355 dart heads work good on them and so will the BMF heads you do not need the bigchief heads ( but i have a set )all this has alot to do with how much HP and money.

Originally Posted by pat mccarthy

come on erick they do good and the 355 dart heads work good on them and so will the BMF heads you do not need the bigchief heads ( but i have a set )all this has alot to do with how much HP and money.

Pat,you are right about the 565.
The 4.600 bore really helps to un-shround the valves.
I.M.O.,the BMF are some of the very best out there.
Why do they call them BMF any-way???

Originally Posted by erik erikson

Pat,you are right about the 565.
The 4.600 bore really helps to un-shround the valves.
I.M.O.,the BMF are some of the very best out there.
Why do they call them BMF any-way???

BIG mother fukers they get some big numers out of them heads.i work on a 632 with a set on it. but it is not running but should be BAD

Originally Posted by pat mccarthy

BIG mother fukers they get some big numers out of them heads.i work on a 632 with a set on it. but it is not running but should be BAD

If it where a large cube sbc,I would look at The All Pro cylinder heads.
To bad they don't make heads for the bbc.
Pat, I think you would be impressed by the All Pro heads.

yes it would be nice to have the money to try new heads out .but around here money is very tight and i can not fund any thing my big chief heads dart olds 18 i have look like they went thru a wood chippper but i can fix them and will put them on my goat