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#1 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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v6 v 305
ive got a 86 custom deluxe with the 4.3 motor in it and a th350 trans. Lately ive been driving it alot and i find it kinda underpowered, especially when i take off from a dead stop or want to merge on the highway. I have an extra 305 motor in the garage that allegedly runs well. would i find that much more power outta the 305 or should i just save my pennies and go for a 350 next year
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#2 |
Senior Member
Join Date: Mar 2003
Posts: 2,500
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That 305 V6 is a classic alright......
They make good torque but are a very heavy engine and don't give modern fuel economy. I would go with a 350 V8 no doubt if that what I had to choose from. |
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#3 |
mmmm....Rye and Coke
Join Date: Apr 2003
Location: MB, Canada
Posts: 485
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Umm...a 305 is a v8, his 4.3 is a 6cyl
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#4 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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i have a 4.3 v6 in it now. it runs and drives fine but it is kinda underpowered for my sometimes heavy right foot. I was thinking of replacing that 4.3 V6 with a 305 V8 i have in the garage. I was wondering if id see much of a performance difference or should i wait to buy a 350 in the spring?
Sorry for the confusion guys
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#5 |
Live from Atlanta
Join Date: May 2003
Location: Atlanta, GA
Posts: 511
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If you change to the 305 now and still aren't satisfied with the performance, you will probably change to the 350 anyway. I'd save yourself some trouble, wait for the 350, and just perform the V8 upgrade once. That's just my opnion.
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Paul |
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#6 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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I would just hold out for the 350. On the brighter side, the 4.3 is a 350 just missing 2 cylinders, so most of your accessories should fit. Is the 4.3 a TBI engine? If so, I would definitely just wait. You would need to find a 5.7 ecm to use as well.
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1974 Jimmy- 5.3/4L80e/NP241 |
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#7 | |
Registered User
Join Date: May 2003
Location: Vermont
Posts: 996
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Quote:
I'm not positive on the years and models it came in, but was around through the 60's found in half tons all the way up to the 6500 series trucks (a 478 V6 was available in 1964 ![]() |
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#8 |
Registered User
Join Date: Feb 2003
Location: Mont Belvieu, TX
Posts: 852
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I have a '92 chevy truck with the 4.3 in it, and my '86 Blazer with the 305. Honestly, I can not tell that much difference between the two.
I say wait for the 350.
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Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L |
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#9 |
been here longer than Liz
Join Date: Feb 2000
Location: Broken Arrow, OK
Posts: 2,437
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From my experience, the 305 will give you the power of a V6 and the gas mileage of a V8. Wait for the 350!
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~Greg~ Mac's Garage '87 SWB 6/8 drop "Piso" '08 CCSB Silverado DD the departed '89 GMC K5 Jimmy 4x4 "Rusty Nuts" '77 Chevy K5 Blazer 2wd '83 Chevy stepside "You get what you pay for" - Mike 'swervin ervin' Ervin |
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#10 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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that 305 looks almost like a big block in those pics, until you look at the exhaust! I had one in a 69 GMC 1 ton, so they were produced until at least then. Good low end, but changing the plugs was kind of a pain when you dropped one.
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1974 Jimmy- 5.3/4L80e/NP241 |
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#11 | |
Registered User
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
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Quote:
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'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's |
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#12 |
yeller
Join Date: Oct 2001
Location: Twin Cities
Posts: 13,826
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I agree with the rest, save up for the 350...you will be much happier!
![]() Make a coffee table out of that 305...remember that thread? ![]() -Jeff |
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#13 | |
Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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Quote:
check out this website, some cool stuff here. there was a 351E V6 available in 66 (dunno if this carried over to 67 tho). 220 hp, 320 tq. they also made a 702 V12 by attaching two 351's!!
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1969 GMC K2500 ![]() 1996 Honda Accord 2007 Kawasaki KLR 650 |
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#14 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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ok yall convinced me im saving for the 350. Luckilly my current set up is a carbuerated system and ill keep a carbuerated system so it should be a pretty easy swap. Im planning on getting some kind of crate motor prolly from summit or jegs or something . Thank you all for your input!
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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