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i don,t know the weight of the ls engine but the 525 efi has edelbrock aluminum heads so i doubt it weighs 500 lbs more than the ls engine.350 lbs seems more like it to me.
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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? |
Originally Posted by mggdoors
(Post 4685119)
Here is a 468 blower motor on the same dyno just for comparison sake. You can decide if it is greedy or not. I believe he said this was 731 cam https://cimg1.ibsrv.net/gimg/www.off...573c66deb.jpeg |
joe,just to prove my point,if i remember correctly you have 468s with merc 420s,do you have a dyno sheet to post up as i don,t remember your hp and torque figures.
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Originally Posted by mike tkach
(Post 4685252)
joe,just to prove my point,if i remember correctly you have 468s with merc 420s,do you have a dyno sheet to post up as i don,t remember your hp and torque figures.
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I’m on board if they’re bored and stroked to 454 with ported heads and tunnel rams :D:D 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. |
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 |
Originally Posted by MILD THUNDER
(Post 4685249)
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? |
I’m all for you doing whatever you want to your boat. I feel kinda bad for this second guy you convinced to do the same with all of these exaggerations though. |
Originally Posted by hogie roll
(Post 4685254)
I’m on board if they’re bored and stroked to 454 with ported heads and tunnel rams :D:D 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. |
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