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Another "help deciding" build with a twist..

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Old 02-22-2019, 06:41 PM
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Default Another "help deciding" build with a twist..

Ok...I have a 2000 WS6 I'm looking to build an engine for. As far as "what I want to do" with the car...I really don't know a focused direction for it. I'd like to get in it and drive 8 hours if I want, swap tires and take it to the track, not get gapped if a random 3 honk arrives...that kind of thing. It's not a daily driver but I will keep all the creature comforts like stereo and AC. It's already equipped with an LS7 clutch/tick master, RKT stage 2 trans, backbraced MWC chassis 4.11 9" and drive shaft, Viking coilovers in the front and ridetech rears, Black heart true dual exhaust, and Kooks 1 7/8 coated headers. I recently purchased a package deal from a friend that included:
-Fast 90/90 Intake and TB
-5 angle valve job 243 heads with new springs (may send to TSP for porting)
-ARP head stud kit
-G5X3 cam
-60K 3.62 24x crank
-and a cracked sleeve LS1..lol (new table)
With all these parts I'm not too sure which way I want to take a big boy build. Should I go 370 iron block with a single turbo? Should I try for a 6.2 aluminum block and build a nasty N/A engine? I've been warned away from 4" stroke cranks due to the piston rock/wobble at the bottom of the sleeve.

Basically...which one would you guys go to net me the most power with the least amount of long run bullshit? Thanks. Alex.
Old 02-22-2019, 06:56 PM
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Besides a nice roadburner/cruiser, what type of racing do you envision for this ride? Corner carving or strictly straight line drag racing? Different builds...
Old 02-22-2019, 07:19 PM
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High cr 370 snd spray.
Old 02-22-2019, 07:43 PM
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I may do some cornering stuff but as far as "racing" goes it will be drag strip kind of stuff.

I'm not a huge fan of nitrous simply because I don't want a cheap Chinese solenoid to determine the fate of an expensive bottom end..lol If N/A, I've been told to go 12:1 on pump gas...does that sound right?
Old 02-22-2019, 07:47 PM
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468 cid.
Old 02-22-2019, 08:07 PM
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Originally Posted by Alex41
I may do some cornering stuff but as far as "racing" goes it will be drag strip kind of stuff.

I'm not a huge fan of nitrous simply because I don't want a cheap Chinese solenoid to determine the fate of an expensive bottom end..lol If N/A, I've been told to go 12:1 on pump gas...does that sound right?
Can you get 93 octane??
Old 02-22-2019, 09:59 PM
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Without e85 id stick to 11.5.
And if you get quality nitrous kits/parts from nitro Dave or NX you wont have an issue
Old 02-23-2019, 10:39 AM
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e85 is kinda available around Nashville but I've never looked too hard for it. I think the highest octane here is 92 but mostly I see 91
Old 02-25-2019, 01:01 PM
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I'm building a 6.2 for a single cab 96 c1500 for mine. Aiming for 11.5 compression. I have access to 91 and e85 but seems the e85 isn't true e85 most of the time unless I take a trip to RS Fuel. If you stay n/a I would go with 6.2 with that g5x3 cam. Throw some nice heads on it, Fast intake and a good flowing exhaust and should be in high 400's rwhp or maybe 500's depending on top end setup.




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