My 81 blazer has. 250 straight 6 with a turbo 300 behind it. Not what I want but what I have, so I'll run her till she pukes. Just curious what some of ya are runnin.
I bet you'll be dead and buried before the straight six ever peukes!...only thing they ever have go wrong is some wipe the teeth off the fiber camshaft gear at high mileage...some had aluminum cam gears to avoid that possibility...I owned several 250 straight sixes,though the ones I had were the later "integral head" versions,that were not as good as the old ones..one I had was a 75 Blazer 2wd,it had a integral head with a one barrel carb...it never did run smoothly,I had to fiddle with the APT screw in the carb to get it to accelerate right and not surge at part throttle,they were set up too lean for emissions and many spark knocked themselves to death........................................................................................................the other 2 sixes I had in a '79 C-10 Bonannza and my 81 G-10 van were both integeral head versions with the crappy 2 bbl Rochester E2SE carb,that was basically a Q-jet sawed in two....other than the crappy carbs though,those engines were pretty dependable and did OK as far as hauling a big tank around...the 307 V8 I put in my van had less balls than the 250 I yanked out!..The Bonnanza eventually lost the ring lands on the #6 piston a few years after I put a Edelbrock 4 bbl on it,but I blame the failure on the original carb,that made it spark knock all its life...it ran perfectly with the Edelbrock right up until the day it started blowing oil out the tailpipe and it still got me home 15 miles without having to tow it,though it wasnt much good by the time I pulled into my driveway.............................................................................................I put a 305 in it and wasn't that impressed with it,I liked the six better,more low end torque..it did go better at highway speeds than the six though,and the fuel mileage didn't suffer any,the sixes aren't any better on gas than V8's really....too much weight for the engine size makes for less MPG I guess..................................................................................................If I had my way ,both my plow trucks would have straight sixes,a 292 would be the best,but any of them would be OK with me,I dont go far with my trucks and shun the interstates,and I'd rather have a simple engine thats easy to fix anything wrong on it ,than some big V8 crammed in there you cant reach anything on...I think my favorite straight six chevy engine was the 235 I had in my '56 3200 series pickup...that thing pulled like a 454,you could lug it down to 10 mph in third gear and step on the gas,and it would just pull,no bucking,no spark knock,and it did fairly well on fuel considering it had 4:56 gears and it screamed at 55 mph....................................................................................................I have had all kinds of V8 chevys--283,307,327,350,400 SB,454's,and though I never had all that much grief with any of them,I now must be showing my age,by prefering a "simple" straight six over all of them...dont get me wrong though,I'd still want a 454 if I had to tow,or the truck is a 1 ton or bigger...I did drive a C-60 with a 292 in it once,it was not exactly the ideal powerplant for a 2-1/2 ton truck,but it did get the job done..........................I have had more GM trannies go sour on me than anything else...seems like all of them have their weaknesses,even the SM465's...I've had the best luck with TH400's,I think I've had broken or had one of every other automatic and standard croak on me ,but no Turbo 400's yet...a plow truck with a straight six/TH400 would be a pretty tough drivetrain to kill....I dont like standards for plowing,my "clutch" leg doesn't like pushing the pedal in a million times during a plow session,and reverse is way too slow...and clutches dont last long either,a year or two if your lucky,if you do a lot of snow pushing...