Black Sunshine/ 00SS

iTrader: (1)

Just wondering what is available, and if a resleaved block can make 454 ci.. This would be for a na motor..

Black02SLPSS

iTrader: (5)

I would say your best bet would be a warhawk block. However there may be other options as far as resleeving a block to make that displacement. Now my question to you is, are you wanting to make 454 ci on a large bore short stroke or smaller bore longer stroke?

davidws6

iTrader: (36)

I had Steve at Race Engine Development Oceanside, CA. do a Darton Dry sleeved LS2 block for me.
4.185 bore with a 4.125 stroke. Block looks sweet but still waiting on pistons for the rotating ***. Staying NA for a little street fun, well maybe the track to see what she'll do

Black Sunshine/ 00SS

iTrader: (1)

I'd prefer to go with the larger bore, to take advantage of a better breathing cylinder head.

95FbFormula

iTrader: (25)

You could try looking into resleeving the L92 block or the ls7 and ls2.

Beast96Z

iTrader: (21)

You can get it out of the LS2 block a couple of ways. One was mentioned above. I went with a 4.155" bore and a longer 4.185" stroke to try and make power at a more streetable range. You can take advantage of alot of different heads at 4.150"+.

TwnTrboCE

iTrader: (43)

ERL resleeved LS2 has my vote. 4.185 bore and a 4.125 stroke. Talk to W2W...

Stang's Bane

iTrader: (22)

What are some heads that you can use at 4.150 that you can't at 4.125??

Beast96Z

iTrader: (21)

It's not that you can't use the heads, but you can take better advantage of them by unshrouding the valves with the larger bore.

Zach@MTI

iTrader: (3)

We have done many 455ci builds. Our 455ci motor uses our own custom dry sleeve with a brand new LS2 block. A 427 is a blast to drive but the torque and response you get from a 455 is incredible!

Zach

SPDMETL

How does this setup adress problems others have brought up with piston skirts coming out the bottom of the bore , and the piston pin intruding on the ring pack . How much for a short block ?

LSGunZ28

iTrader: (8)

they need to make a 5" bore LSx engine all aluminum

thanks

Stang's Bane

iTrader: (22)

That will be kinda hard with a 4.4 bore spacing.

Andrew91GT

iTrader: (6)

At that point just buy the 5.3" Bore spacing billet block and build a 970 CID motor!

Or how about some oval pistons?

Black Sunshine/ 00SS

iTrader: (1)

LOL


I see ads for the tall deck LSx block.... I bet a 500 ci block would be a blast to drive on the street.

TwnTrboCE

iTrader: (43)

I'm going to find out this spring. Were working with ERL to promote there Super Deck 2 500ci block. It will go in my Collector Edition street car.

grinder11

iTrader: (1)

Maybe off topic, but don't laugh at the oval piston idea! Honda did exactly that with a motorcycle engine over 20 years ago!!! And it revved to OVER 20,000 RPM (Yeah, twenty thousand!) They did this because the Grand Prix rules then in effect banned anything over 4 cylinders. So Honda put 2 (!!) connecting rods on each oval shaped piston, equipped the motor with 4 oval pistons to meet the rules,and ran 8(!)valves per cylinder, effectively making it an in-line, or straight, 8 cylinder engine (32 valves, 8 connecting rods, etc.) And, it worked. The hardest part was making the piston rings fit and seal properly, but they eventually DID make it work. Many who saw and heard it said that when it was wound all the way up, it sounded like a 2 stroke!! (A 4 stroke at 20,000 R's would have 10,000 power strokes per minute, same as a 2 stroke at 10,000 RPM! Just food for thought!!

grinder11

iTrader: (1)

I believe that an "undersquare" motor with the 4.125 bore and a 4.250 stroke is about 454 cubes, but haven't figured it totally out, YET!

Anonymous

That was the NSR750.

GIGAPUNK

iTrader: (2)

Are the L92/LS3 mid or dry sleeves available yet?

Any details on prices or bore sizes?