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

[BigTruckDriver]

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

[southerner]

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.

[pat mccarthy]

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

[BigTruckDriver]

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

[pat mccarthy]

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

[erik erikson]

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.

[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.

[erik erikson]

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???

[pat mccarthy]

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

[erik erikson]

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.

[pat mccarthy]

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