Excal

what's better? i see cars that are "all bore" and hear the term strokers alot..

what's the diff in milage, drivability, noise, hp gains Cost ect ect

robertbartsch

...Good question; from what i have read, the stroker has the advantage of putting more torque down low and avoiding any risk from dropped replacement bore sleeves...

..The all bore can rev higher/faster and gennerally can make a little more power given equal displacement....

The more interesting question seems to be the price...from what I gather the price of an all bore is a tad higher than a pure stroker, but some may quible with this....??

kumar75150

All bore will make more peak power but I wouldnt buy one without a 2 year+ warranty.

Price for a good all bore and all stroke is prolly about the same.

I have seen some all bores make just as much and sometimes more tq than an all stroke.

If reliability wasnt an issue, I would do an all bore.

Colonel

The only real disadvantage that an all-bore has compared to an all-stroke is the possibility of sleeve issues. There are companies now that have really gotten the process down pat from where it used to be but there is still that risk.

The thing I like most about the all-bore is that the larger bore allows for bigger valves without shrouding them. This helps flow and promotes power. You also have the advantage of being able to run a better rod/stroke ratio since you have a shorter stroke.

Excal

umm the Agostino group, didn't they use an all bore in their 8-second T/A?

i remember they guy talking about no need to re-sleeve and the amount of miles the engine had.

would the stroker idle louder?

havea question about cube-increase....what would a stock Cube motor have on say a...382 or 422?

milage? reliability? also do big cubes mandate better octane?

blk~2000~Z28

I am a little confused.

I am not to sure if all bore is possible in an 8 sec. T/A w/o resleeve, seems impossible.
mileage and reliability generally rely on 2 things:
1. Manufacturer
2. Your right foot!!

Colonel

Agastino's 8 second car is bored AND stroked.

Stroker idle louder? Bigger cubes can make the idle tone a bit deeper but I wouldn't really say louder.

Big cubes do not mandate higher octane. That is mainly a function of dynamic compression ratio which is influenced by many variables, not the least of which is your static compression ratio. You could build a 460 CI LS1 that runs on 87 octane if you really wanted to.

Excal

so there aren't negatives when increasing displacement?

emissions?

i'm pretty sure he said that the engine was not re-sleeved and said that their engines last.

Nine Ball

iTrader: (38)

ARE used a resleeved factory block, and a forged stroker crankshaft. Like Colonel said, bored AND stroked. We used to call this setup a "super stroker" in the LS1 world, since a regular 382ci with just a crank is a stroker.

You get increased emissions with a stroker. Bigger engine, more exhaust per combustion cycle. My previous 382ci passed emission sniff tests just fine though (with a small T1 cam).

All-bores are generally cheaper than strokers. Until someone makes a cheap cast crank, expect that to remain unchanged. The forged stroker cranks cost over $2K by themselves most of the time.

Tony

robertbartsch

SDPC sells a Callies forged 4" crank with a reluctor wheel for a mere $1,600; you can get a 4.125" for $200 more...

SDPC------------------------------------------->

Loudmouth LS1

iTrader: (10)

Yeah, I was lookin at that too, but I heard that the Callie's have a lot of problems, but I forget what they were, if someone could chime in that knows, i'd like to know what the problems are, and if they actually do have problems, thanks!