Throwin a 305 and a 700r4 in my 68 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Crispyr1 · 12-01-2009, 12:19 PM

What do ya'll think? Tried searching for it last night on the net and could find an opinion, so what better place.

My thought process:

Not looking for a lot of power just equal to better than what my 292 was putting out. Needing an overdrive for my 4:11's and want the manly feeling/sound of an 8

LOL. oh yeah it was only 150 more for the motor and install, if put in with the tranny.

Please tell me what you think.

PowerPro · 12-01-2009, 12:25 PM

If you're gettin it cheap, sounds great! I personally wouldn't have chosen a 305, but a V8 is definitely better than the I6, imo. If you have the option, though, I'd get a 350. If you're feelin froggy.... well, look at my sig.

*krwyellowz28* · 12-01-2009, 01:30 PM

If you're going to the trouble of the V8 swap, I'd recommend going straight to the 350. You can pick one up for the same price, and you'll get better power, exhaust note, and a good platform for further building when the time comes. Look for a 350 from a 96-00 Silverado/Sierra with vortech heads... they run forever and are great on a budget. Have fun with the swap!

**Clyde65** · 12-01-2009, 03:46 PM

I would do an LS install....better mileage/reliability etc. A nice 5.3 with a 4l60e trans with under 75K miles, you could get for under a grand$.

3r!c84 · 12-01-2009, 04:10 PM

Quote:

Originally Posted by Clyde65

I would do an LS install....better mileage/reliability etc. A nice 5.3 with a 4l60e trans with under 75K miles, you could get for under a grand$.

where are u shoping at ? 5.3 and a 4l60e is wayyy more then that used
more like 2000 if your lucky

Crispyr1 · 12-03-2009, 12:54 AM

well i'm in TN and i've been looking around and couldn't find a 350 or an LS that i wouldn't have to rebuild. And the Rebuild, seeing i dont honestly have the knowledge to do myself, doesn't really fit into my budget, and isn't practical for me right now. I really don't know if i could've found a more reliable source for 150 bucks.

*krwyellowz28* · 12-03-2009, 01:02 AM

Price, availability, and skill level are all very good arguments for the 305. Either way, you're goin with a V8.

**Ron 586** · 12-03-2009, 01:03 AM

Get it done. Yes a 350 is nice but a properly tuned 305 will get good mileage and with those gears should have plenty of go. Good luck with your truck. When you get it together cruise up and say hey. We love company.

*krwyellowz28* · 12-03-2009, 01:04 AM

Quote:

Originally Posted by 3r!c84

where are u shoping at ? 5.3 and a 4l60e is wayyy more then that used
more like 2000 if your lucky

A local salvage yard has an '04 2wd Silvy 5.3/4L60e combo takeout that includes EVERYTHING needed for a swap with 72k miles on it for $800, and they can barely give away the 5.3's w/o accessories.

Crispyr1 · 12-03-2009, 10:53 AM

Quote:

Originally Posted by Ron 586

Get it done. Yes a 350 is nice but a properly tuned 305 will get good mileage and with those gears should have plenty of go. Good luck with your truck. When you get it together cruise up and say hey. We love company.

LOL i will! Do we have any meets anywhere around here?

piecesparts · 12-03-2009, 12:15 PM

Locally in our Kansas area. 5.3s with auto trannys are around $1500 with the computer inclided.

Jim_PA · 12-03-2009, 01:13 PM

A 292 is a better engine than a 305.

305's are good for making ricers look fast.

Seriously... don't do it.... either go 327/350+, or stick with the 292. At least a 292 is cool

Jim_PA · 12-03-2009, 01:18 PM

Seriously....

stock 305 220HP/200tq.
stock 292 215HP/215tq.

I bet the 292 has a better curve too.

Crispyr1 · 12-03-2009, 01:37 PM

Quote:

Originally Posted by Jim_PA

Seriously....

stock 305 220HP/200tq.
stock 292 215HP/215tq.

I bet the 292 has a better curve too.

WOW that really isnt a diff! if the 292 and the 305 isn't that much diff in hp and tq why didn't they just keep to the 292 since it was out first?

Jim_PA · 12-03-2009, 01:58 PM

I guess people thought v8 was all the rage. They never stopped making inlines (OK, there may be a gap...) but all the way into the 80's (and even today...) they still make inlines.

Crispyr1 · 12-03-2009, 02:02 PM

Quote:

Originally Posted by Jim_PA

I guess people thought v8 was all the rage. They never stopped making inlines (OK, there may be a gap...) but all the way into the 80's (and even today...) they still make inlines.

what's the advantages of the 305 over the I6? I know the I6 is a more efficient motor... right? Sorry don't really know much about motors. thx for the enlightenment!

Jim_PA · 12-03-2009, 02:28 PM

Quote:

Originally Posted by Crispyr1

what's the advantages of the 305 over the I6? I know the I6 is a more efficient motor... right? Sorry don't really know much about motors. thx for the enlightenment!

Absolutely none that I am aware of, unless you don't have enough room for an inline

*krwyellowz28* · 12-03-2009, 02:51 PM

Quote:

Originally Posted by Crispyr1

what's the advantages of the 305 over the I6? I know the I6 is a more efficient motor... right? Sorry don't really know much about motors. thx for the enlightenment!

exhaust note... which would be a good enough reason for me

Jim_PA · 12-03-2009, 03:20 PM

Quote:

Originally Posted by krwyellowz28

exhaust note... which would be a good enough reason for me

on a stock 305

*krwyellowz28* · 12-03-2009, 03:40 PM

Quote:

Originally Posted by Jim_PA

on a stock 305

I've owned/been around too many TBI, Vortech, TPI, and LSx vehicles to mention, and one of the best sounding STOCK engines was my '91 Silverado with TBI 305, Flotech shorty headers with glasspacks and 4"x24" SS slash cut tips. It was by no means fast, but man it sure sounded nice. Hell, any V8 will sound better than a V6.

piecesparts · 12-03-2009, 04:41 PM

I vote for a 350 over a 305. A better power curve and overall performance capabilities.

Crispyr1 · 12-03-2009, 06:28 PM

Quote:

Originally Posted by piecesparts

I vote for a 350 over a 305. A better power curve and overall performance capabilities.

Thx man, but i don't have the money for a 350 or a rebuild.

capev86 · 12-03-2009, 06:51 PM

i'd stick with the big boy 292 and hop it up a bit (they have 4 barrel manifolds for these) but if you need a new engine anyway, a 305 would make a great stepping stone. my dad replaced the tired 350 in his 72 burb back in the 80's with a 305 out of a '77 monte carlo. he installed a camaro oil pump, an rv grind cam and rebuilt the stock 4 barrel as well as upgraded the ignition to electronic (hei). we used it to pull our 71 holiday 6,000 lb camper all over the place.

i'd prefer a 305 to the 307 in my 72 burb because it has the longer stroke from the 350, just small pistons which make for a more efficient power plant. i'd love to do a stroker kit in a 305 and work the cyl heads for better flow. but i have my bad boy 406sbc to go in my truck. i have a 3/4 ton with the 4.57 rear gear (i have the 3rd member to swap to a 4.10) so i feel your pain on fuel economy as my best on a tank has been 11.1mpg. i want to add the (rare) factory OD unit to the saginaw 3 on the tree eventually and that with the softer rear gear should get me in the 16-18mpg range. right now the truck screams on the highway and even around town it has too much rpm, even with that puny 307.

we still have that old holiday camper and i will be hauling it around everywhere with my burb next summer!!

**truckdude239** · 12-03-2009, 07:26 PM

i have a 305 in mine stock expec tit has been bored 30 over and it seem to have decent power

ChiefThinElk · 12-03-2009, 08:03 PM

What are your thoughts/experience on a 283?

12-01-2009, 12:19 PM	#1
Crispyr1 Registered User Join Date: Jul 2009 Location: Orange Park, FL Posts: 114	Throwin a 305 and a 700r4 in my 68 What do ya'll think? Tried searching for it last night on the net and could find an opinion, so what better place. My thought process: Not looking for a lot of power just equal to better than what my 292 was putting out. Needing an overdrive for my 4:11's and want the manly feeling/sound of an 8 LOL. oh yeah it was only 150 more for the motor and install, if put in with the tranny. Please tell me what you think.

12-01-2009, 12:25 PM	#2
PowerPro Registered User Join Date: Sep 2009 Location: Spokane, WA Posts: 68	Re: Throwin a 305 and a 700r4 in my 68 If you're gettin it cheap, sounds great! I personally wouldn't have chosen a 305, but a V8 is definitely better than the I6, imo. If you have the option, though, I'd get a 350. If you're feelin froggy.... well, look at my sig. __________________ 1970 C20 LWB Fleetside with a 472 Caddy engine! TH400 Restoration in progress 07 Yamaha 650 V-Star Custom 83 Honda V-45 Magna

12-01-2009, 01:30 PM	#3
krwyellowz28 Account Suspended Join Date: Jun 2009 Location: Peoria, IL Posts: 11	Re: Throwin a 305 and a 700r4 in my 68 If you're going to the trouble of the V8 swap, I'd recommend going straight to the 350. You can pick one up for the same price, and you'll get better power, exhaust note, and a good platform for further building when the time comes. Look for a 350 from a 96-00 Silverado/Sierra with vortech heads... they run forever and are great on a budget. Have fun with the swap!

12-01-2009, 03:46 PM	#4
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,548	Re: Throwin a 305 and a 700r4 in my 68 I would do an LS install....better mileage/reliability etc. A nice 5.3 with a 4l60e trans with under 75K miles, you could get for under a grand$. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

12-03-2009, 12:54 AM	#6
Crispyr1 Registered User Join Date: Jul 2009 Location: Orange Park, FL Posts: 114	Re: Throwin a 305 and a 700r4 in my 68 well i'm in TN and i've been looking around and couldn't find a 350 or an LS that i wouldn't have to rebuild. And the Rebuild, seeing i dont honestly have the knowledge to do myself, doesn't really fit into my budget, and isn't practical for me right now. I really don't know if i could've found a more reliable source for 150 bucks.

12-03-2009, 01:02 AM	#7
krwyellowz28 Account Suspended Join Date: Jun 2009 Location: Peoria, IL Posts: 11	Re: Throwin a 305 and a 700r4 in my 68 Price, availability, and skill level are all very good arguments for the 305. Either way, you're goin with a V8.

12-03-2009, 01:03 AM	#8
Ron 586 RIP Mr Ron Join Date: Dec 2005 Location: Big Sandy, Tn. 38221 Posts: 8,150	Re: Throwin a 305 and a 700r4 in my 68 Get it done. Yes a 350 is nice but a properly tuned 305 will get good mileage and with those gears should have plenty of go. Good luck with your truck. When you get it together cruise up and say hey. We love company. __________________ Ron (Mr Round Tuit) Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket

12-03-2009, 12:15 PM	#11
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: Throwin a 305 and a 700r4 in my 68 Locally in our Kansas area. 5.3s with auto trannys are around $1500 with the computer inclided. __________________ Frank

12-03-2009, 01:13 PM	#12
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Throwin a 305 and a 700r4 in my 68 A 292 is a better engine than a 305. 305's are good for making ricers look fast. Seriously... don't do it.... either go 327/350+, or stick with the 292. At least a 292 is cool Last edited by Jim_PA; 12-03-2009 at 01:13 PM.

12-03-2009, 01:18 PM	#13
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Throwin a 305 and a 700r4 in my 68 Seriously.... stock 305 220HP/200tq. stock 292 215HP/215tq. I bet the 292 has a better curve too.

12-03-2009, 01:58 PM	#15
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Throwin a 305 and a 700r4 in my 68 I guess people thought v8 was all the rage. They never stopped making inlines (OK, there may be a gap...) but all the way into the 80's (and even today...) they still make inlines. Last edited by Jim_PA; 12-03-2009 at 01:58 PM.

12-03-2009, 04:41 PM	#21
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: Throwin a 305 and a 700r4 in my 68 I vote for a 350 over a 305. A better power curve and overall performance capabilities. __________________ Frank

12-03-2009, 06:51 PM	#23
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: Throwin a 305 and a 700r4 in my 68 i'd stick with the big boy 292 and hop it up a bit (they have 4 barrel manifolds for these) but if you need a new engine anyway, a 305 would make a great stepping stone. my dad replaced the tired 350 in his 72 burb back in the 80's with a 305 out of a '77 monte carlo. he installed a camaro oil pump, an rv grind cam and rebuilt the stock 4 barrel as well as upgraded the ignition to electronic (hei). we used it to pull our 71 holiday 6,000 lb camper all over the place. i'd prefer a 305 to the 307 in my 72 burb because it has the longer stroke from the 350, just small pistons which make for a more efficient power plant. i'd love to do a stroker kit in a 305 and work the cyl heads for better flow. but i have my bad boy 406sbc to go in my truck. i have a 3/4 ton with the 4.57 rear gear (i have the 3rd member to swap to a 4.10) so i feel your pain on fuel economy as my best on a tank has been 11.1mpg. i want to add the (rare) factory OD unit to the saginaw 3 on the tree eventually and that with the softer rear gear should get me in the 16-18mpg range. right now the truck screams on the highway and even around town it has too much rpm, even with that puny 307. we still have that old holiday camper and i will be hauling it around everywhere with my burb next summer!! Last edited by capev86; 12-03-2009 at 06:53 PM.

12-03-2009, 07:26 PM	#24
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Throwin a 305 and a 700r4 in my 68 i have a 305 in mine stock expec tit has been bored 30 over and it seem to have decent power __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

12-03-2009, 08:03 PM	#25
ChiefThinElk Registered User Join Date: Dec 2006 Location: Texas Posts: 22	Re: Throwin a 305 and a 700r4 in my 68 What are your thoughts/experience on a 283?



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