71 chevy posted this
1. INDIVIDUAL COIL PER CYLINDER. coil fires once per cycle instead of 8 times a cycle
2. sequential fuel for superior gas mileage
3. if you get an alum ls1 it is close to 200lbs lighter than a bbc. and thats weight off the front of the car
4. o ringed intake and oil pan gaskets make it a joy to work on
5. pulling cam in dead easy
6. changing springs is dead easy, also no need to do the whole io/ec or whatever it is song and dance to reset the rockers.
7. hydraulic roller from the factory
8. 15 degree heads from the factory. i wonder what 15 degree sbc or bbc heads cost
9. l92 heads that are $700 complete for the pair that outflow most bbc heads
10. 6 bolts mains stock
11. stock crank that has held 1300hp without a hiccup
13. no water through the intake makes it easier to pull
14. acc. drive belt has a tensioner from the factory
15. internally balanced from the factory
17. equal spaced intake and exhaust ports offer superior flow
18. cam sync allows for cylinder to cylinder tuning of fuel and spark
19. iron block supports up to 1500hp
novaderrik posted this
take one apart and you will see what makes them tick.. everything about them has the look and feel of high end race parts for old school small blocks.
how much is a set of 18 degree heads for a small block? i think the worst LS heads have 15 degree valve angles and the best have 12 degree valves, which opens up the port layout so there are no bottlenecks. the "bad" LS heads are better than all but the "best" old school small block heads.
6 bolt main caps with 4 bolts in the regular up and down configuration with 2 bolts that come in from the side..
head bolts that tie into the block down by the crankshaft...
the oil pan is a structural part of the block..
the cam is placed up high in the block compared to a regular small block, which allows shorter (and thus lighter) pushrods that go up to the valves at a better angle.
roller fulcrums on the shaft mounted rocker arms..
ventilation windows that let the air in the crankcase move around in the block, which causes less pumping losses as each piston moves up and down.
the oil pump is driven directly off the front of the crankshaft, and there is no distributor to put extra strain on the full roller timing chain.
roller lifters riding on a cam with a larger base circle.
chvl71402 posted this info and video
http://www.youtube.com/watch?v=0Hqj0OxM ... r_embedded
related info
viewtopic.php?f=80&t=10685&p=46287#p46287
Engine #2
6.0 Iron LS
Untouched L92 square port heads
Stock shortblock
239/247 HR cam
9.8/1 compression
Single plane GM manifold
The engine before it was installed in the '57 Corvette
1. INDIVIDUAL COIL PER CYLINDER. coil fires once per cycle instead of 8 times a cycle
2. sequential fuel for superior gas mileage
3. if you get an alum ls1 it is close to 200lbs lighter than a bbc. and thats weight off the front of the car
4. o ringed intake and oil pan gaskets make it a joy to work on
5. pulling cam in dead easy
6. changing springs is dead easy, also no need to do the whole io/ec or whatever it is song and dance to reset the rockers.
7. hydraulic roller from the factory
8. 15 degree heads from the factory. i wonder what 15 degree sbc or bbc heads cost
9. l92 heads that are $700 complete for the pair that outflow most bbc heads
10. 6 bolts mains stock
11. stock crank that has held 1300hp without a hiccup
13. no water through the intake makes it easier to pull
14. acc. drive belt has a tensioner from the factory
15. internally balanced from the factory
17. equal spaced intake and exhaust ports offer superior flow
18. cam sync allows for cylinder to cylinder tuning of fuel and spark
19. iron block supports up to 1500hp
novaderrik posted this
take one apart and you will see what makes them tick.. everything about them has the look and feel of high end race parts for old school small blocks.
how much is a set of 18 degree heads for a small block? i think the worst LS heads have 15 degree valve angles and the best have 12 degree valves, which opens up the port layout so there are no bottlenecks. the "bad" LS heads are better than all but the "best" old school small block heads.
6 bolt main caps with 4 bolts in the regular up and down configuration with 2 bolts that come in from the side..
head bolts that tie into the block down by the crankshaft...
the oil pan is a structural part of the block..
the cam is placed up high in the block compared to a regular small block, which allows shorter (and thus lighter) pushrods that go up to the valves at a better angle.
roller fulcrums on the shaft mounted rocker arms..
ventilation windows that let the air in the crankcase move around in the block, which causes less pumping losses as each piston moves up and down.
the oil pump is driven directly off the front of the crankshaft, and there is no distributor to put extra strain on the full roller timing chain.
roller lifters riding on a cam with a larger base circle.
chvl71402 posted this info and video
http://www.youtube.com/watch?v=0Hqj0OxM ... r_embedded
related info
viewtopic.php?f=80&t=10685&p=46287#p46287
Engine #2
6.0 Iron LS
Untouched L92 square port heads
Stock shortblock
239/247 HR cam
9.8/1 compression
Single plane GM manifold
The engine before it was installed in the '57 Corvette