LS1 dimensions
Does anyone have the external dimensions for the LS1 engine? I'm looking to do a swap thatis suposed to use a Ford 302, but I'd rather use an LS1. If someone can tell me how the two engines comare size wise, it'll be greatly appreciated!!
-Chuck
chukjafr@hotmail.com
hope that helps
Pat
-Chuck
'03 DSG Lightning (should be traded in today!)
Does anyone have the external dimensions for the LS1 engine? I'm looking to do a swap thatis suposed to use a Ford 302, but I'd rather use an LS1. If someone can tell me how the two engines comare size wise, it'll be greatly appreciated!!
-Chuck
chukjafr@hotmail.com
I made up a table from some measurements I took of the SBF, SBC, LS1, and Gen III truck motors (though not complete, they are similar to the LS1). If anyone can fill in the missing dimensions (or corrections), I only ask that you post them. Hope this helps.
Andy1
And since this is an LS1 site, we probably ought to have some more LSx type info posted.
Such as:
1.) There are at least 3 different accessory drive systems. Corvette is shortest, then Camaro / Firebird, then Truck is the longest. We should know how long the thing is with each of those in place (and the corresponding balancer).
2.) There are a couple of waterpumps: LS1, Truck, LS2. How long are they? I don't know, but I'd love to.
3.) Somebody was working on pan dimensions, but I don't know if all the info got together and stickied.
I can provide some small block chevy data, but am no help as to LSx's as yet. Haven't got started with my project.
'Dreamin'
-Chuck
'03 DSG Lightning *sold*
'05 SIerra WT 4.8L
Trending Topics
The Best V8 Stories One Small Block at Time
Kinda off topic, but does anyone know if the tall truck intakes flow better than the LS1 intakes? Other people are using 351W engine with a carb in the Focus, so it lloks like I have a good amount of room above the engine...makes for options on intake manifolds.
-Chuck
According to the guys over at the truck section, the general concensus seems to be that the truck intake flows slightly better than the early LS1. When they went to the LS6 intake ('03?), those intakes flow only slightly better. Basically, if you have a truck motor, the LS1 intake swap is a waste of time. BTW, the truck intake is 3" taller than the LSx. If you have room for the deeper pan and taller intake, why not do a 4.8/5.3 or 6.0 swap? Truck motor is only 63 lbs. heavier, but can be bought very cheap. Low mileage 5.3's are $1K to $1.5K all day long, and you can adapt the TBW and have cruise control to boot! FWIW.
Andy1
Thanks (sorry for going off topic)
Thanks (sorry for going off topic)
I seriously considered one of the truck motors for my 914 conversion, recognizing I'd have to swap out the intake and oil pan for the LS1 version in order for it to fit. Even so, at the seriously low prices of the truck motors, I'd still be ahead after spending money on those parts. Found an '03 4.8 LR4 with 18K miles for $750.....sure was tempting!! The 6.0L does sell for somewhat more, however.
Andy1
Right now the project is still on paper, but when it starts coming together, pictures will be posted!
-Chuck
'03 DSG Lightning *sold*
'05 GMC Sierra WT
According to the guys over at the truck section, the general concensus seems to be that the truck intake flows slightly better than the early LS1. When they went to the LS6 intake ('03?), those intakes flow only slightly better. Basically, if you have a truck motor, the LS1 intake swap is a waste of time. BTW, the truck intake is 3" taller than the LSx. If you have room for the deeper pan and taller intake, why not do a 4.8/5.3 or 6.0 swap? Truck motor is only 63 lbs. heavier, but can be bought very cheap. Low mileage 5.3's are $1K to $1.5K all day long, and you can adapt the TBW and have cruise control to boot! FWIW.
Andy1
Liters Cubes Bore (mm) Stroke (mm)
4.8-----293-----96.01--------83.00
5.3-----325-----96.01--------92.00
5.7-----346-----99.00--------92.00
6.0-----364-----101.60-------92.00
4.3-----262-----101.60-------88.39 (6 cylinder engine)
it's interesting to note that the bore on the 6.0L is the same as the 4.3 which is derived from the small block 350. Hmmm....so a 4.8L crank in a 6.0L block to make a high-revving 5.4L...
-Chuck
'03 DSG Lightning *sold*
'05 GMC Sierra WT (4.8L)
Over on the truck board, I posted some info (as did some others) regarding the 4.8 crank/rods in a 6.0 block. You basically end up with a modern day 327 (actually, 328), with nearly the same bore/stroke, but a far better rod ratio. According to *the numbers*, it appears that everything fits with a finished piston/deck nearly identical to stock (within .003"). If you use the stock 4.8 heads, even the CR works out (9.8:1, if I remember correctly). I didn't run the bob weight numbers, as don't have all the components to weigh; probably run it off to a balance shop anyway. Neat thing is, that all this stuff interchanges, like the crank that's the same for everything 5.3 and up; manifolds, oil pans, etc. I just love this kind of motor stuff and would love to build it, but I'm afaid I'd get too bogged down with it and loose sight of finishing my conversion.
BTW, that truck intake repotedly flows better through the whole range than does an early LS1.
Andy1
these motors....It looks like if built right, these things can rev to 8 or 9000 rpm easy. Unfortunately, a solid roller setup isn't cheap.
We'll see.I appreciate all the info.
-Chuck



