Ls7 with a ls9 supercharger best of both worlds
02-07-2018, 08:33 PM
#1
Ls7 with a ls9 supercharger best of both worlds
http://www.superchevy.com/how-to/eng...-past-1000-hp/
looking at this article and I am very interested anyone have any cons on this? I’m need a whole new 427 cause mine popped a piston so I’m going forged. Should I take on this project? I’d be happy with 800-850crank hp on 91
looking at this article and I am very interested anyone have any cons on this? I’m need a whole new 427 cause mine popped a piston so I’m going forged. Should I take on this project? I’d be happy with 800-850crank hp on 91
02-07-2018, 08:57 PM
#2
Le Mans Master
http://www.superchevy.com/how-to/eng...-past-1000-hp/
looking at this article and I am very interested anyone have any cons on this? I’m need a whole new 427 cause mine popped a piston so I’m going forged. Should I take on this project? I’d be happy with 800-850crank hp on 91
looking at this article and I am very interested anyone have any cons on this? I’m need a whole new 427 cause mine popped a piston so I’m going forged. Should I take on this project? I’d be happy with 800-850crank hp on 91
On the other hand, you could be the guy that can say "my engine cost more to build than your whole car".
If you want an LS9, just buy an LS9, for a fraction of the cost...
Last edited by Dan_the_C5_Man; 02-07-2018 at 09:09 PM.
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427V8BB (02-07-2018)
02-07-2018, 08:59 PM
#3
its a z06 I need the displacement atleast
I think the sleeves were redone all they changed for power wise was the heads other than the aftermarket cam and ls9 blower
02-07-2018, 09:12 PM
#4
Le Mans Master
Last edited by Dan_the_C5_Man; 02-07-2018 at 09:14 PM.
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427V8BB (02-07-2018)
02-07-2018, 09:22 PM
#5
Drifting
Seems interesting, if your already completely replacing the rotating assembly and replacing the factory problematic LS7 heads I say go for it!
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427V8BB (02-07-2018)
02-07-2018, 09:29 PM
#6
well not completely, I’m doing a 5.3 bored out to a 4.125 and stroked for a 427 guy told me the block has done many 1000-1500hp cars includes they’re own sleeves for the power. Than I’m also getting a new crank rods and pistons anyways. Why not slap on a ls9 accessory, supercharger, and heads and call it a ls8 lol technically not a ls7 but 427 cubed LS and I can add piston squirters
ill reuse my dry sump
Last edited by 427V8BB; 02-07-2018 at 09:35 PM.
02-07-2018, 09:30 PM
#7
i have AHP stage 4 race ported heads milled .030 with btr 660 springs and those racing guides he sells still have the receipt. It’s the top notch ls7 head he sells only 2k miles on them! Easily 3-4K I can buy a set of used ls9 heads for a grand then the rest is for the accessory and blower!
Last edited by 427V8BB; 02-07-2018 at 09:34 PM.
02-07-2018, 09:54 PM
#8
Team Owner
There's almost nothing LS7 about that build.
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427V8BB (02-07-2018)
02-07-2018, 10:04 PM
#9
Team Owner
well not completely, I’m doing a 5.3 bored out to a 4.125 and stroked for a 427 guy told me the block has done many 1000-1500hp cars includes they’re own sleeves for the power. Than I’m also getting a new crank rods and pistons anyways. Why not slap on a ls9 accessory, supercharger, and heads and call it a ls8 lol technically not a ls7 but 427 cubed LS and I can add piston squirters
ill reuse my dry sump
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427V8BB (02-07-2018)
02-07-2018, 10:12 PM
#10
Just pull the BTR cam for a blower cam, and go with a TVS 2300 like you initially thought, sell off the Mamo MSD. I'd just be careful on the tune since you have milled heads. No need to reinvent the wheel and try to mate a LS9 blower to the car. Or go back to stock intake, blower cam, and a Centri unit.
02-07-2018, 10:15 PM
#11
Just pull the BTR cam for a blower cam, and go with a TVS 2300 like you initially thought, sell off the Mamo MSD. I'd just be careful on the tune since you have milled heads. No need to reinvent the wheel and try to mate a LS9 blower to the car. Or go back to stock intake, blower cam, and a Centri unit.
was as thinking about that centri and stock intake hmmm what do you think is the most reliable and budget wise so I can get it done faster. Thinking the 5.3 bored and stroked with the ls9 top end still
02-07-2018, 10:37 PM
#12
Team Owner
5.3 block like you're doing, your heads, swap your stock cam (or find a mild blower cam) and OE intake manifold back on, and find a used centri kit.
02-08-2018, 08:59 AM
#14
02-08-2018, 10:41 AM
#15
Safety Car
Sleeved 5.3L (btw, you can't "bore" a 5.3L to 4.125" without replacing sleeves) with your stock crank, rods and new pistons will do 800 hp all day with an A&A or ECS centri kit.
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427V8BB (02-08-2018),
DOUG @ ECS (02-09-2018)
02-08-2018, 11:01 AM
#16
RED said the rods can’t handle boosted power it can handle 800 NA not boosted so I guess I need to go fully forged for 800whp?
02-08-2018, 11:16 AM
#17
Safety Car
RED won't assemble your shortblock anyway. Talk to HPR. They can get you a resleeved 5.3L and use your stock LS7 parts (if they are still salvageable).
02-08-2018, 11:22 AM
#18
If I can use my rods and crank how much you think this is gonna run me for a short block? Thanks for the help tech and why do you guys want centri so bad? Curious thought the top mount was better and cooler
02-08-2018, 11:41 AM
#19
Safety Car
If you think that, you should spend a whole lot more time reading.
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427V8BB (02-08-2018)
