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  #1  
Unread 11-26-2017, 05:57 PM
helladk's Avatar
helladk helladk is offline
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Default Palo Alto, Ca - Build Help 1966 Chevelle RS Chassis - What Engine?

Hello All,

New member here. I have a build in the works and decided it's time to utilize the forums for help.

I used to work at a chassis fabrication shop as a project manager and I'm frequently assisting my friends with advice and direction with their projects.

I'm beginning a nice build with a friend of mine that will be a 1966 Chevelle using a RoadsterShop Chassis. The car will be a pro-touring driver. I want to install a naturally aspirated "LS" engine with good power, reliability, and no exotic fuel management system. I'd like to have a 600+ hp/tq range engine and if I could have a cool sheet metal intake manifold (primary for looks) that would be great. I see the GMPP LSX454 looks good but it's a cast iron block. Also a Lingenfelter LS7 427 looks attractive. So here is my question...

Q: Can someone please recommend the best naturally aspirated LSX454/LS3/LS7 crate engine with a plug and play FI fuel management system ie factory GM or Holly. Also is the sheet metal intake idea realistic or will that compromise the fuel system somehow. I understand it will need tuning regardless.

Thank you!
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  #2  
Unread 11-27-2017, 09:08 AM
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Vega$69 Vega$69 is offline
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I would go with a GMPP Crate LS3 either 480 hp or the 525 and the GMPP Harness and ECU.

Plug and play without any tuning required.

Stick with the factory intake. The sheet metal intakes are known to kill low end torque.
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  #3  
Unread 11-27-2017, 09:57 AM
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214Chevelle 214Chevelle is online now
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Don't know how much you want to spend on an engine, but I'd give Don Hardy Race Engines a call. Besides, if the sheet metal intake is just for looks, I think it'll be ok if only a street driven car or an occasional weekend here and weekend there type deal. But, that's just my opinion. I go overboard on everything anyway though and it just may be that I love sheet metal intakes too.
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  #4  
Unread 11-27-2017, 10:12 AM
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GregWeld GregWeld is offline
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I'm building -- or rather -- having Don Hardy Race Engines build a 550 hp LS motor WITH sheet metal intake as we speak.....

The motor will go in my daily driver '40 Ford Pickup.


This will be my second Don Hardy motor.
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'40 Ford Pickup project - @ Custom Hot Rods of Andice https://www.customsandhotrodsofandice.com/


** New project ** Ron Sutton GT TRACK WARRIOR '70 Mustang widebody - Tube chassis - 700hp LS7 - PPG 6 speed sequential trans - big aero - big tars....

'65 Mustang track car ("Old Yellar")

'07 Mustang track car ("BigWing") -- FOR SALE $35K

'08 Lotus 2 11 track car ------ SOLD - Thank you SW!
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  #5  
Unread 11-27-2017, 01:06 PM
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Vega$69 Vega$69 is offline
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Quote:
Originally Posted by GregWeld View Post
I'm building -- or rather -- having Don Hardy Race Engines build a 550 hp LS motor WITH sheet metal intake as we speak.....

The motor will go in my daily driver '40 Ford Pickup.


This will be my second Don Hardy motor.
Curious???

Why have a LS3 550 HP built when you can buy a new crate LS3/525 that dynoes close to 550 HP with a 2 years 50k mile warranty?
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  #6  
Unread 11-27-2017, 02:08 PM
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GregWeld GregWeld is offline
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Quote:
Originally Posted by Vega$69 View Post
Curious???

Why have a LS3 550 HP built when you can buy a new crate LS3/525 that dynoes close to 550 HP with a 2 years 50k mile warranty?

Because mine will be built with better parts -- and he's my friend!
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'40 Ford Pickup project - @ Custom Hot Rods of Andice https://www.customsandhotrodsofandice.com/


** New project ** Ron Sutton GT TRACK WARRIOR '70 Mustang widebody - Tube chassis - 700hp LS7 - PPG 6 speed sequential trans - big aero - big tars....

'65 Mustang track car ("Old Yellar")

'07 Mustang track car ("BigWing") -- FOR SALE $35K

'08 Lotus 2 11 track car ------ SOLD - Thank you SW!
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  #7  
Unread 12-02-2017, 03:49 AM
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helladk helladk is offline
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Thanks all for the replies! This is exactly what I was looking for. After some consideration, I decided that due to the caliber of the build and budget it seems prudent to go with the supercharged 418. I need to be in that high power range and I have the resources available to execute a reliable and dependable installation.

I'll be purchasing the SC418/T56 from DHR to accompany the RS chassis. I'll post pics when worthy. Please feel free to drop a suggestion as all
are welcomed, that's what I joined this forum for. Thank you!
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  #8  
Unread 12-03-2017, 12:03 PM
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214Chevelle 214Chevelle is online now
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Welcome to the board and hurry with those pics.
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'72 CHEVELLE--4.0 Whipple-LS7, T56 Magnum, HRE 791R, IRS
'68 C10 SWB--LS3, 6L80, HRE 948R, C5 suspension

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  #9  
Unread 12-05-2017, 05:40 PM
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andrewb70 andrewb70 is offline
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Why not a new LT4? A lot of power and a warranty...and plug N play...

Andrew
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  #10  
Unread 12-05-2017, 07:41 PM
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Flash68 Flash68 is offline
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Cool build. Welcome!

Some guys don't care about a warranty..... and that's ok.
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