Quote:
Originally Posted by 1funride
Junk yard LS, cheap turbo, make more power than you will with 10K in a Pontiac motor. I love Pontiac motors and anything other than a Pontiac in a Pontiac is a sin, but I don't think this is a hard one to answer, LS way cheaper to build, heads flow great, rugged blocks.
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This is partially true but also may need some more context, because i've been involved in some of these "cheap" builds that make gobs of power, but only for a limited time.
Nearly every "melted" turbo LS done on the cheap conversion i've seen melts #7 piston - and yes, steam ports left intact. One of the owners I worked with did it 3 times. Zero issues with tune, heaps of fuel and 10* timing. Apparently not an isolated situation and many others report the same issue with stock bottom end motors.
So routinely melting #7, sleeving/machining, time pulling an engine, time refitting an engine, time removing and refitting turbo pipework, routinely buying/dumping fluids from engine, the high power (short lived) LS junk swap deal gets pretty ****.
Above owner that did the cheap turbo 5.3 conversion has since sold that engine/turbo combination because he got sick of it melting all the time and has gone back to a normal 350 SBC that was factory option in his car (Holden).
Do LS's have their place? Absolutely, I love my LS3 in my daily driver. But am I absolutely thrilled that Paul is building me a new engine for my Monaro and it's still a conventional Pontiac deal? Hell yeah! So don't retire just yet mate
