Got these somewhere else:
LS2 Pictures
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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Adkoonerstrator
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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.
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Adkoonerstrator
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From: Deep in the seedy underworld of Koonerville
Originally Posted by Taspeed
Sure looks like an overhead design to me
Adkoonerstrator
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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
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.
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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.
Adkoonerstrator
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From: Deep in the seedy underworld of Koonerville
Originally Posted by Pro Stock John
That is a Power-On-Demand truck engine.
Power on demand = right foot to the floor.
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?
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From: "Tr"Asheville
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