Location: I have no tolerence for liberals and fools, but sometimes i repeat myself
Quote:
Originally Posted by EnglandGreen
Officially - the LS family are Generation III & Generation IV small block Chevy engines - although they share zero parts with the Generation II SBC. Generation II SBC is the traditional water cooled intake manifold/rear mount distributor that we know and love.
The Warhawk is currently the largest LS/SBC at 481ci
Stephen
actually the rod bearings interchange in an aftermarket application
But is that a one-off casting - or based on a production block?
My post was specifically asking for "aftermarket" small block Chevy engines and not specifically GM production engines. A Sonny Leonard 540 or Scott Shafiroff engine are just a few of what I am looking for. The bigger cubic inch the better in a small block package (including LS and LSX engines.)
My post was specifically asking for "aftermarket" small block Chevy engines and not specifically GM production engines. A Sonny Leonard 540 or Scott Shafiroff engine are just a few of what I am looking for. The bigger cubic inch the better in a small block package (including LS and LSX engines.)
I didn't say "GM" - just production - meaning more than a handful of custom castings were made. Example Warhawk.
I didn't say "GM" - just production - meaning more than a handful of custom castings were made. Example Warhawk.
Yes, these are not "One Off" engines. I doubt that he is selling hundreds of them each year but I also doubt he is selling hundreds of his 864 cubic inch mountain motors either. Sonny always has an amazing series of booths at PRI in Orlando and he generally brings some of his monster engines with him. He is a super cool guy who is very passionate about building big engines and big horsepower.
Anyone hear much about big inch small block engines coming out of the Nickens camp these days?
The bigger cubic inch the better in a small block package (including LS and LSX engines.)
NitrousSam
Since displacement is based on bore and stroke, physical limitations are
imposed by cylinder spacing, deck height, cam placement, sump
clearance and so on.
Aftermarket parts overcome the OEM boundaries but at some point a
small block becomes a big block, doesn't it?
If you care to share, is your interest based on packaging within a C4
engine compartment, visually camouflaging the engine's potential or
another motivation? If none of these, then wouldn't your options grow
if the choices could include other platforms besides the "SBC"
My interest is a big cubic inch sleeper. At one point I was strictly considering an all aluminum engine replacement but the added power and torque of a larger cubic inch engine will more than make up for the added weight. I have been working on a weight reduction C4 for a couple of years but the focus may be shifting to more horsepower and torque. I have been pretty excited about the 472 small block from Scott Shafiroff and the price is very right for what you get. No firm decisions at this point because I have a handful of other cars but the wheels are turning.
Sam
Quote:
Originally Posted by Slalom4me
NitrousSam
Since displacement is based on bore and stroke, physical limitations are
imposed by cylinder spacing, deck height, cam placement, sump
clearance and so on.
Aftermarket parts overcome the OEM boundaries but at some point a
small block becomes a big block, doesn't it?
If you care to share, is your interest based on packaging within a C4
engine compartment, visually camouflaging the engine's potential or
another motivation? If none of these, then wouldn't your options grow
if the choices could include other platforms besides the "SBC"
What does one do to conceal the intake runners that are big enough to
pass a fist through, the valve covers, header primaries, 2"+ carb spacer
and the Flushmaster Supreme typically mounted on top of big displacement
small blocks?
This is one of Mr Shafiroff's 434's, but it will illustrate my point
Here is a 472 in a Chevy II
My vote is that not even the rubes would fail to notice that something
is amiss if a person tried to pass one of these off as just another 406.
Officially - the LS family are Generation III & Generation IV small block Chevy engines - although they share zero parts with the Generation II SBC. Generation II SBC is the traditional water cooled intake manifold/rear mount distributor that we know and love.
The Warhawk is currently the largest LS/SBC at 481ci
Stephen
I respectfully disagree. Gen 2 SBC's are the LT engines with an opti and reverse cooling. Gen 1 is just about everything older. Gen 3 is the LS1, LS6, and I think LS2. Gen 4 is LS3, LS7, etc.
I respectfully disagree. Gen 2 SBC's are the LT engines with an opti and reverse cooling. Gen 1 is just about everything older. Gen 3 is the LS1, LS6, and I think LS2. Gen 4 is LS3, LS7, etc.
Slalom, If you take the intake and carb off the top photo you are essentially looking at a tall deck small block. Now bolt on an efi and it will fit under my hood.
The engine below has a an entirely different intake (looks similar to one of my Dart 4500 Big Chief intakes) and I believe the heads are could be the Profiler or the Dart Little Chiefs.
My goal is not to build an all out race effort otherwise I would just put the engine from my Avatar into my 84 and add an 8 inch cowl hood.
Slalom, If you take the intake and carb off the top photo you are essentially looking at a tall deck small block. Now bolt on an efi and it will fit under my hood.
The engine below has a an entirely different intake (looks similar to one of my Dart 4500 Big Chief intakes) and I believe the heads are could be the Profiler or the Dart Little Chiefs.
My goal is not to build an all out race effort otherwise I would just put the engine from my Avatar into my 84 and add an 8 inch cowl hood.
If you're going to go through the work and expense of swapping in a tall deck efi SBC, I'd build a 427-454 GMPP LSx block motor. IMO.
Location: Hey baby, you should come over to myspace and twitter my yahoo until I google all over your facebook San Luis Obispo, CA
So the term LSX refers to the basic block design of all the GM engines from LS1 up to LS7/LS3, right? Is it the same basic block, outside dimension and weight-wise?
Me too!
