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Old 03-24-2010, 02:23 PM   #1
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what do you think about engine/trans combo...

a co-worker has a old chevy g20 van he's willing to sell to me for a couple hundred bucks. at first he thought it had a 350. but after i was looking around i saw it's got a 5L in it so assuming it's a 305. looks like it has a 700r4 trans in it.

i was wondering what you all thought about this combo. i have the little 2.5 in my jeep, so i know anything will be a improvement. so think i should pick it up for a couple hundred or keep looking for a 350 and probably spend quite a bit more.

thanks for any input

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Old 03-25-2010, 09:39 AM   #2
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no-one has any info/sugestions? almost thinkin of gettin it bc it's only a couple hundred bucks

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Old 03-25-2010, 09:47 AM   #3
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Is it carb or FI? Nothing wrong with the 5.0. They do have issue with valve guides and seals with high mileage. Look for the blue smoke on cold start-up. I also think the 2wd 700R4 won't work for 4wd unless you change the output shaft.
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Old 03-25-2010, 11:55 AM   #4
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it's a carb. i just dont know why i'm havin a hard time finding a 350 and a 7004r that they dont want a arm and leg for. most prices i'm finding from people i can almost buy new.
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Old 03-25-2010, 01:37 PM   #5
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I would have to say the only way I would swap in a 305 or 350 would be if it were the later injected vortec motor. The older computer controlled carbed 5.0's are junk. I would look for a 87 up 4wd truck for cheap.
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Old 03-27-2010, 08:40 AM   #6
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ooookay if u really want the junky 350 yeah go for the vortec. i hate those things they get great mileage but suck other wise. i would go for a old school mid 80's tbi 350, 305 if u were so inclined. they were strong and not that hard on gas. and u still get the off raod advantage of injection and as far as transmission if u are going auto then get the 700r4 its worth every Penney but get one that's before the electric shift. i cant remember when they switched from a all Manuel valve body.
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Old 03-27-2010, 09:18 AM   #7
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Quote:
Originally Posted by morphious View Post
ooookay if u really want the junky 350 yeah go for the vortec. i hate those things they get great mileage but suck other wise. i would go for a old school mid 80's tbi 350, 305 if u were so inclined. they were strong and not that hard on gas. and u still get the off raod advantage of injection and as far as transmission if u are going auto then get the 700r4 its worth every Penney but get one that's before the electric shift. i cant remember when they switched from a all Manuel valve body.
have any sugestions then? from what i have been reading 350 seems like a very common swap. from what i have gathered, chevy 350, 7004r trans, ford 8.8 rear end, dyna 44 front (i thinks thats what it was). and i know all kinds of parts for a 350 are out there.

i haven't bought anything yet still looking up things, reading, asking questiong. my yj has the 2.5 w/ manual trans. and gearing is way off now....doesnt want to get out of own road. and forget about keepin up any speed up hill.

i just don't want to buy something now and have to replace it in near future. even though right now my YJ is a daily driver. i want to start a little off roading and work my way up from there.

it's nice having toys and all my bills now paid off...lol

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