What do ya'll think?

Telemarshallman · #1 10-17-2005, 10:02 PM

My Uncle recently gave me a 1986 Buick regal with a newer 305 SB (40k mi). First off I know nothing about buicks. I know I like Grand Nationals but thats another topic and another motor.

I was wondering if you think it would be worth it to try a swap with a 305. I don't have any funds to modify the motor other than exhaust headers and a vette radiator so if I put it in my truck it will still be a stock 305.

Also, I haven't heard much about Buick V8s. Is this because it is the same as a Chevy V8 or is this because it sucks? Does anyone know if the regals came with a 700R4 or something else.

**steve** · #2 10-17-2005, 10:49 PM

I think it is the same as a chevy 305. And I don't think it is worth your time and effort doing that swap unless your truck has a bad motor already and you are going to use the 305 for only a short time with future plans of putting a 350 in it. The 305 never impressed em much, but what the hell do I know I am crazy enough to build a 2.8 stroker.

Telemarshallman · #3 10-18-2005, 01:57 PM

What all would it take to turn a 305 into a 350 or a 383? Wouldn't a 305 boared out .30 = a 350 (with new pistons and such) so then couldn't I use a 305 block boared .30 and a 400 crank to make a 383?

It would be a project then, but I think I can find all the parts I need rather cheap at a junk yard, and I know of a couple good machine shops around here.

Something to think about I guess.

67Truckin · #4 10-18-2005, 02:13 PM

Go talk to your machine shops and get their opinions on a buildup for the 305. I thought HotRod did a stroker on the 305 but I don't remember what cubic inch they ended up building. I think they used 6" rods, forged custom pistons and a special ground stroke crank.
I don't believe the 305 can be made into a 350 due to cylinder bore size. All 327 and 350's use a standard 4.00" bore.

Danny_SS · #5 10-19-2005, 01:17 PM

no you cannot just bore a 305 to make a 350. The difference in bore is a lot bigger than.030". besides tha 350 crank is different.
You are better off finding a 350 and work on that if you want a 350.

mdmilburn · #6 10-19-2005, 06:19 PM

modifying the 5.0 liter tbi v-8 this site really shows how the 305 can shine but it needs a T.B.I. to do it

mdmilburn · #7 10-19-2005, 06:21 PM

http://www.goingfaster.com/spo/modthel03.html this site explains the potentail of the 305

mdmilburn · #8 10-19-2005, 06:29 PM

try this one http://www.goingfaster.com/spo/343hp305.html from what i can gather the heads are the main down fall for high rpm power but there torqe potential and m.p.g. are hard to beat for a v-8

**steve** · #9 10-20-2005, 12:13 AM

Don't the 305 have 2 bolt mains? And you are talking about 300-400 horsepower out of a 2 bolt main engine? That sounds like a bad idea. I do not know the exact stress load those 2 bolt mains can take, but I would bet you are pushing them pretty hard by putting 300+ horses to them.

mdmilburn · #10 10-20-2005, 07:42 AM

information is power er is that knowledge ...........how many big block chevys from the first ones in 1965 on up through the years easly made that stock from the factory with 2 bolt mains