Is this even possible? Is a LS1/LS2 engine small enough to replace a Northstar engine?
-
Feb. 5, 2012 9:31 p.m. noddaz Reader
-
Feb. 5, 2012 9:35 p.m. 93EXCivic SuperDork
IIRC the XLR is just a fat Corvette with a Northstar engine.
-
Feb. 5, 2012 9:40 p.m. Keith SuperDork
I can tell you it would be no problem to replace a Cadillac 429 with an LS engine
They're pretty compact. The Northstar has overhead cams, yes? That grows the engine, which makes it easier to fit an LS engine in there.
-
Feb. 5, 2012 9:46 p.m. AutoXR HalfDork
I have a northstar fiero I built about 10 years ago.. The N* is a huge complicated beast. I would gladly toss for an LS1 if the adapters weren't so hi priced
-
Feb. 5, 2012 9:48 p.m. patgizz SuperDork
AutoXR wrote:
I have a northstar fiero I built about 10 years ago.. The N* is a huge complicated beast. I would gladly toss for an LS1 if the adapters weren't so hi priced
who needs an adapter when you can get the LS4 from a monte/impala/bonne/gxp
-
Feb. 6, 2012 12:05 a.m. Appleseed SuperDork
Weren't more northstars transverse? Could complicate things.
-
Feb. 6, 2012 7:11 a.m. Knurled Dork
noddaz wrote:
Is this even possible? Is a LS1/LS2 engine small enough to replace a Northstar engine?
It's mad smaller.
-
Feb. 6, 2012 7:56 a.m. Raze SuperDork
Yeah a N* is a 90° DOHC V8, it's ridiculously huge (read wide) compared to an LSx. The kicker is that indeed most Northstar powered Caddies (pre latest body STS and XLR) the rest were transverse...
-
Feb. 6, 2012 10:09 a.m. AutoXR HalfDork
In reply to patgizz:
Because Automatic. Making it manual requires oil pan mods (basically fabricate a new one) remounting the starter - etc etc.. The northstar bolted up to the Getrag and required an easy little adapter for the 1 bolt that was out of alignment. The flywheel is aluminum and off the shelf from spec... where as the ones V8 archie uses are a design I am not fond of.
-
Feb. 6, 2012 11:20 a.m. MadScientistMatt SuperDork
Appleseed wrote:
Weren't more northstars transverse? Could complicate things.
Transverse LSxs exist too.
-
Feb. 6, 2012 12:58 p.m. Gearheadotaku SuperDork
What kind of Caddy is it going in?
-
Feb. 6, 2012 2:59 p.m. Appleseed SuperDork
MadScientistMatt wrote:
Appleseed wrote:
Weren't more northstars transverse? Could complicate things.
Transverse LSxs exist too.
We purists try to ignore that fact.
-
Feb. 6, 2012 3:17 p.m. Conquest351 Dork
Doesn't the GM F40 transaxle fit right up to the LS4? Isn't that what most of the Fiero guys are using?
-
Feb. 6, 2012 3:18 p.m. slopecarver New Reader
Appleseed wrote:
MadScientistMatt wrote:
Appleseed wrote:
Weren't more northstars transverse? Could complicate things.
Transverse LSxs exist too.
We purists try to ignore that fact.
Unless said setup is in a mid engine RWD configuration as a swap.
