Torn.. Scrapped project two engine combos
So.. The two drivetrains:
Currently in the car--
489 big block chevy--makes around 630hp probably 600ftlbs of torque
-profiler 290cc heads
-10.2:1 compression
-Edelbrock fuel injection, proflo xt manifold
-2" headers
-straub roller cam(236/242 on a 109 600.600 lift)
T56 magnum transmission to a built 10 bolt that'll eventually go 9" or S60 with 4.10 or 3.89 gears.
--I have no complaints of this drive train. It's loud. It's quick. It's brutal. It's fun to drive. Not bad on gas with the double over drive either
Other drivetrain(is the grass greener?)--
Fully forged 6.0(summit pro LS kit) 370" LS--unknown power
-Fully studded and machined mains and heads--goal is 15psi or higher built specifically to do so
-LSA heads that are currently stock with BTR double springs for camshaft
-9.5:1 compression
-CTSV blower--2.45 pulley, stock lower pulley and will be using LSX concepts blower drive system
-BTR Stage 2 Turbo cam(226/231 on a 113 with 0.600/0.600 lift)
-1 7/8 headers if I decide to ditch the manifolds I currently have(possilby will keep them initially)
Built 4l80e buy a local place that does great work. 3200 stall circle D triple disk converter
Same rear diff
Which would you go with and why?
It kind of depends what you are going to do with the car. If just a local cruiser I'd keep the big block. Even with the T56 you might get 10-12 mpg maybe?
Having said the above the LS combo you listed sounds pretty cool. Similar hp and torque to the big block? Gas mileage with an LS will be double compared to the big block. Don't know if that is a big deal for you
I think the big plus for the LS is the weight reduction compared to big block. The LS will save 200 plus pounds? Less weight up front means a better handling car.
You can reuse the T56 on the LS wit some mods. Headers? I'd go aftermarket in a heart beat.
I would agree will almost all of your statement, lol. "Not bad on gas", What is that to you? I would imagine the LS set up would do at least 5mpg combined better
It kind of depends what you are going to do with the car. If just a local cruiser I'd keep the big block. Even with the T56 you might get 10-12 mpg maybe?
Having said the above the LS combo you listed sounds pretty cool. Similar hp and torque to the big block? Gas mileage with an LS will be double compared to the big block. Don't know if that is a big deal for you
I think the big plus for the LS is the weight reduction compared to big block. The LS will save 200 plus pounds? Less weight up front means a better handling car.
You can reuse the T56 on the LS wit some mods. Headers? I'd go aftermarket in a heart beat.
I would agree will almost all of your statement, lol. "Not bad on gas", What is that to you? I would imagine the LS set up would do at least 5mpg combined better
I should just throw the ls in a crown vic... But we have smog here
My camaro is a 75 so it lends itself toward the big block.. the LS though.. would make for a TON of room in the engine bay!
I have thought about going back to a auto instead of the manual in the car.. but I don't know. That 4l80 is exactly what I would want too
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But I'm stuck.. I can't have anything later than a 75
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