Inliners International Forums General Discussion Blown and Injected turbocharging 250chevy

hello, I'm new here and actually couldn't really find what i was looking for on turbocharging a chevy 250, its a 1979 250chevy engine with the integrated head. And i like to know if it is worth turbocharging it to get 200-250hp or am i better of using other mods? car has to be driveable in low and high rpm. don't know at what rpm i cruise the most cuz i dont have a tachometer. In time I'll add an overdrive to the car.
my current setup is:
Chevy 250 engine 1979 (truck)
rochester varajet 2se
standard exhaust
1965 3speed (three on the tree) gearbox

If its worth it what parts do i need

Here's my 2 cents. Ditch the integral head, regardless. To get to 200-250, rework the engine instead of turbocharging. A budget would be helpful to know what you are doing. I love turbos, but if you are only trying to get 200-250, a turbo would be a lot of money/work. A good head, cam, headers, intake, and carb will have you seeing 200-250 pretty easily.

there is not really a planned budget, i have a spare engine sitting here, this is the one i will work on (its a 1979 camaro engine)and I'll just be gathering the needed parts untill i have them all. But my thought was that if I go for turbo setup I would have less work on the engine so if one is done and swapped i can prepare the other engine the same way and put it aside so when one fails on me i can just swap engines.
but anyway if not going turbo what setup should i be looking for? and how much money should i keep in mind?

200 hp?

Offy intake $200
Langdon headers $270
Holley 8007, 390 CFM 4 bbl: $200-250 used
Exhaust: single 2.5" with Flowmaster 44 muffler: $500-ish
HEI: $100
radiator: $200
250 head: I've seen whole 250 engines for $200.

Keep in mind you don't have to do it all in one shot. You can go in steps.

What vehicle is the engine in? There is late model GM 275/290HP (stock HP) inline 6 as an alternative to doing all the engine work.

Even better you can put an LS engine & make a lot more power.

The new LS based V-6 engines make a lot of power also.
https://www.google.com/search?q=LS+GM++based+V-6&biw=1129&bih=562&tbm=isch&tbo=u&source=univ&sa=X&ved=0CCwQsARqFQoTCO_fxKCNrscCFcwsiAodDWMBOg&dpr=1.7#imgrc=R5-TkQeNaYa7BM%3A

MBHD

sorry about my late reply, been busy working on my house.
Engine sits in a 1965 impala, bigger engine is not possible because of the safety inspection, more power is because there is no mentioning on hp on the papers.
reason I want to get to 200hp: not stress the engine too hard and with 200 i have enough for most cars driving around here.
If it is safe to go up a bit more that's no problem for me.
I can't find an older head for the engine around here (Belgium), and even complete engines are all later models and the ask 1000 euro (1200dollar) for a whole engine...
Anyone milled of the manifold to get an aftermarket fitted on the heads?
thanks for the replys anyway.
Ps no new engines will be use because i want a carburated car and the new V6 are all injection

The 2006/2009 Saab SUVs had a GM DOHC 4.2L inline 6 (same size as your 250), if you built an carb intake for it (intake flanges are available) and put a 4bbl carb on it, you would get 270ish HP with out the turbo. The ignition can be run by a stand alone ignition controller so no need to run the factory PCM.

Add a turbo later and get 400+HP

hate to say it but engine upgrades will have to wait due to problems (engine not starting see topic in the engines section)

btw i have never seen Saab SUVs around here so finding an engine from it will be near to impossible but thanks for the tip anyway