4.3 Vortec vs 4.0 OHV vs. 4.0 SOHC
#51
03-23-2006
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#52
03-23-2006
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#54
03-23-2006
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#55
03-24-2006
hopefully i can drive the "new" truck soon hehehe....
#56
03-24-2006
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Originally Posted by NicksterSVT
You got to drive D's truck? I envy you...
lets see.. 4.3 Chevy -vs- DOHC Ford.
Pros for Chevy :
- Takes SB chevy parts as its a SBC minus 2 cylinders ( same rods, pistons, rings ).
- Reliable Pushrod setup, been around forever (*50 years or so.. )
- Lots of aftermarket go-fast parts
- CHEAP to fix/find in a boneyard.
Cons for Chevy :
- Uses SBC mains, Spind berrings, just as all the SBC's have done ( thus the huge aftermarket of rods/berrings. I can;t think of a single person thats never heard of someone who has had a main/rod berring spin on them )
- Only good in the lower rpm's, floating valvetrain still.
- Heavy for its relativly small size.
- Block retains more heat on a pound for pound basis compared to most other engines ( including the SBC's of the same years. )
Pros for Ford :
- Can rev to 7 grand with no instability in the valvetrain, STOCK. Both of the ' stock ' engines ( original one in my truck and teh one that replaced it after blowin a head off it ) were ' tuned ' to 7grand on the limiter. I NEVER spun a berring or tossed a rod with either, even on the bottle.
- Stays relativly cool.
- Bottom end has a self supporting ' girdle ' system. I think the bottom end is good for 400HP with no worries , bone stock.
- Balanced Reciprocating Assemnly
- No floating valvetrain.
Cons :
- Anyone ever hear of that timing chain tensioner ?
- What aftermarket? Super6 motorsports? 'Bama Chips? If we went to Summit Race Equipment in Akron Ohio.. there would be More for the Chevy then our motors.
- Anemic torque curve till about 2 grand. This is a car engine more then a truck one ( IMO ) .
Head-to-Head , GM needs that Turbo to compete. Even with the turbo ( and its lagg ) something tells me a SOHC with a dry 50 shot would stomp it pretty bad ( I've only run into one typhoon/cyclone and he would NOT run ).
With the SOHC/v6 in the Stang.. theres a growing aftermarket. Less then a year after its implimentation, theres at LEAST 4 superchargers.. we had exploder express and their milingering for 2 years.. Times are a changing however.
GM believes ' EcoTec ' is their savior.. Good luck to em' .
#57
11-09-2010
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#58
11-09-2010
#59
11-09-2010
#60
11-09-2010
A friend of mine had a '91 S-10 4x2 shortbed 4.3/automatic in high school. It was ok for burnouts and various other things teenagers like us did to cars back then. It had the old non electronic 4 speed OD automatic in it and we discovered by accident one day that if you would hold in first gear, get up to about 25-30mph and shift it into second while hard on the gas it would squal the tires pretty good. I think we spent the rest of the afternoon doing that. Poor truck sure took a beating with all of us behind the wheel back then but it never did break. I think he drove it for 4-5 years and finally traded it in on something else.
Last edited by klc317; 11-09-2010 at 08:37 PM.
#61
11-09-2010
#63
11-15-2010
^ I agree. But my experience is with the SOHC and 4.3. My buddy had a 4.3 in his blazer and we had to work on that thing like every month. Not to mention off the line or on the highway my 4.0 SOHC would run away from it hands down when his blazer was actually running right. Ha I converted him and he got a Ranger not much later after I got mine back in 06.
#64
11-15-2010
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well 2 years ago I bet a guy that my truck would do better on the dyno then an 2002 S10 with the 4.3L vortec he had 4x4 and a 3:73 gear to the best of my memory he dynoed at 151 HP and 173 TQ. Of course I beat him but not by a lot 165 HP and 211 TQ in my 02 4.0L SOHC 4x4 4:10 gear.
#65
11-16-2010
#67
11-18-2010
the sohc is rated for 208hp from the crank stock, it can be made to put out alot more power than that. the only thing that gets me about it is the amount of torque that it puts out. i wanna put a v8 in my truck so that i can get more hp and torque, but v6's dont really put out good torque (down-low) to begin with they are v6's...
#68
12-12-2010
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#69
01-04-2011
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well my moms got a 1999 Gmc Jimmy 4.3 and i got a 2001 ranger 4.0 sohc 5speed me and my buddie raced my ranger and the jimmy i beat the jimmy by 4NA Half cars!!!! and i burnd out through 1st and 2nt.... and ya idk why but the jimmy revs up slow u flor the jimmy and it takes like 2 sec's to hit the rev limiter and my ranger u floor that thing ang its right there....lol the 1st time i floord it i just held it to the floor but idk if is a rev limiter or it it flowt's the valves cuz it dont go bom bom bom bom it gose bbbbbbbbbbbbbbbb bbbbbbbbbbbbbbbb bbbbbbbbbbbb i got a video on you tube a when i 1st bought it i was doin a burn out
#70
01-04-2011
#72
01-18-2011
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