LS2 Pictures
Got these somewhere else:
01-06-2004, 02:13 PM
#6
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Nope that is a prodotpe(sp) I dont even think it will be consiter a Gen3 motor. All the gen3 motor can exchange all parts except pistons and some micx stuff. Those heads wont even fit on the gen3 motors.
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01-06-2004, 02:19 PM
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That's a truck motor sitting there. Notice the water pump outlet, fuel rails, and accessory setup. 
Scott Turvey I think was talking about that motor but, I forget what the designation is on it.
Reckless - Did you change the name of the pictures or is that what they were.
Scott Turvey I think was talking about that motor but, I forget what the designation is on it.
Reckless - Did you change the name of the pictures or is that what they were.
01-06-2004, 02:21 PM
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Originally Posted by Taspeed
Sure looks like an overhead design to me
01-06-2004, 02:30 PM
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Ok, here is another thread with a SAE paper about that motor.
https://ls1tech.com/forums/generation-iii-internal-engine/100876-sae-paper-new-6-3l-500hp-ls7-3-valve-engine.html
https://ls1tech.com/forums/generation-iii-internal-engine/100876-sae-paper-new-6-3l-500hp-ls7-3-valve-engine.html
01-06-2004, 02:43 PM
#15
Originally Posted by XLR8NSS
Cam is in the block with two pushrods. One pushrod works a big rocker on both intakes the other pushrod works the exhaust valve via that horizontal bar. No overhead cam on that motor.
yeah...i see that now. I didn't really study it before. That is one f'ed up design.
01-06-2004, 03:00 PM
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This design is evidence of the excellence of the original two-valve Gen III head. Obviously GM engineers were asked to improve head flow while retaining the economics of the single-cam, pushrod block. That they found it necessary to resort to such an inelegant if not goofy solution suggests that the two-valve head is near optimal for that configuration.
01-06-2004, 03:54 PM
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Originally Posted by Pro Stock John
That is a Power-On-Demand truck engine.
Power on demand = right foot to the floor.
01-06-2004, 04:08 PM
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Looks sturdy, but look at the size of the rocker pedestal (for lack of better term) and the 3rd valve connector. They look extremely heavy for valvetrain components, I wonder how much they weigh?
01-06-2004, 04:17 PM
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man that rocker geometry is way f*ked up! Doesn't look very reliable, I dunno just don't like the looks of it. I thought the whole point of having more valves was because you had an overhead cam and that it was feasbile and wouldn't have to make some funny setup like this.
-Sly
-Sly