LS Build: In Progress
05-03-2019 | 09:50 PM
#302
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From: chicago
Just read an article where they swapped an ALL iron bbc, from a 67 chevelle, for an ALL aluminum LS3. Car scaled 266lbs lighter.
Had that bbc had alum heads, the difference would have been prob 190-200lbs.
Are yours aluminum or iron blocks Mgg?
Had that bbc had alum heads, the difference would have been prob 190-200lbs.
Are yours aluminum or iron blocks Mgg?
05-03-2019 | 09:56 PM
#303
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From: yorkville,il
05-03-2019 | 10:05 PM
#305
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From: chicago
I think i have the one from borowski, with the old heads, no intercoolers. Boat ran 89mph with that combo. With new heads, chillers, little more boost, boat ran 96.
05-03-2019 | 10:07 PM
#306
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From: St. Pete Beach, FL
I’m on board if they’re bored and stroked to 454 with ported heads and tunnel rams 
Theyll be more efficient than bbc blower motors for sure. But I wouldn’t think they’d be more efficient than an injected big block. They may have a better chamber, but that would be a minor improvement. If you’re talking apples to apples NA motors.
Theyll be more efficient than bbc blower motors for sure. But I wouldn’t think they’d be more efficient than an injected big block. They may have a better chamber, but that would be a minor improvement. If you’re talking apples to apples NA motors.
05-03-2019 | 10:07 PM
#307
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From: San Tan Valley AZ
I think we once again missed the point. That 468 blower motor is not something I an competing against. Just a reference to judge against as for accuracy of the dyno I ran on. Thats it. If I wanted to compete with a blower motor than I would compete by either turbo or supercharger/ procharger. Not the case. Its just a reference
05-03-2019 | 10:17 PM
#308
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From: San Tan Valley AZ
iron. My block is like 90lb heavier than aluminum ls. Mine all in with exhaust front accessories everything will be in the 600lb range. Exhaust minus risers are even aluminum. Oil cooler is not mounted on engine. Everything on ls is smaller. Crank rods pistons valves heads. It all adds up. And then add though beautiful, but heavy headers, efi intake fuel rails, ecu, distributor etc.
05-03-2019 | 10:19 PM
#310
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From: San Tan Valley AZ
I’m on board if they’re bored and stroked to 454 with ported heads and tunnel rams
Theyll be more efficient than bbc blower motors for sure. But I wouldn’t think they’d be more efficient than an injected big block. They may have a better chamber, but that would be a minor improvement. If you’re talking apples to apples NA motors.
Theyll be more efficient than bbc blower motors for sure. But I wouldn’t think they’d be more efficient than an injected big block. They may have a better chamber, but that would be a minor improvement. If you’re talking apples to apples NA motors.
