Small block or Big block

[biggraypig]

Which is better?
What do you run?

[396_WAYS_TO_SPIT]

Ive got the case of popcorn ready for this one
I personally run big block
No displacement for cubic inches.................

[biggraypig]

Yea, it could get interesting.

[Xerophobic]

Our Lighweight 21 tunnel built for FX class racing will do low 80's with a BONE STOCK ZZ4 crate motor.
http://www.***boat.com/image_center/...nnelsiderr.JPG
Please lets not have anyone on here come and say small blocks don't work in jetboats.
http://www.***boat.com/image_center/...tunnelrunr.JPG
Incidentally when I say lightweight tunnel I do not mean something paper thin that can't handle chop, this is still a very rugged whitewater boat.
That same hull with a stout smallblock would catch quite a few big block boats well offguard. I'd estimate 400 HP would get you into the 90's and all of these speeds are quoted with rollcage, safety gear and two people onboard
Cheers

[ck7684]

I think most run big blocks. I had a small 14 ft jet boat set up for a SBC, but it was never in running condition, but I think it coulda been fun...I got rid of it tho...
Dont a lot of the racing boats run small blocks??

[Some Kind Of Monster]

Ive got the case of popcorn ready for this one
I personally run big block
No displacement for cubic inches.................
No replacement for displacement? You been drinkin again?

[Devilman]

LOL...
Most every jet I've ever been around has had a big block. There is a guy in town, that has been tryin to run a SBC, without much luck. That may be the way he's building them though, I've never met him. There is another guy down south of me that is running a 383 Chevy in his boat & it runs pretty good.
Lots of the aluminum jets run small blocks & they are definitely taking care of business with them.
Far as which one is better, I'd say whatever fits the application.

[wsuwrhr]

If you want to go fast in a regular-layup-fiberglass-JET-boat, a big block is your only choice.
Unless of course you are working with and unlimited budget,
then anything is possible.
Now for those beer can boats, you would have plenty of fun with a small block.
How is that answer for you?
Brian

[396_WAYS_TO_SPIT]

No replacement for displacement? You been drinkin again?
I was still half a sleep Ill be drinking tonight though

[edog_103]

I have a 1988 16' Carribean with a small block chevy. I'll say this. It's just ok. It will never be fast. But it does pull a skier and gets my ice chest up and down the river, so i guess it's fine.