Jump to content

65 special, what engine will fit?


Guest
 Share

Recommended Posts

I asked this awhile back what would fit in my 65 special convertible, it's got a 300 with a 4bb carb, and an auto. I was asking if a 340, or something bigger might fit, then mentioned gas milage, and answered my own question. <BR> The heck with milage! I want power, I want something fast, I want to have fun, fun, fun, till the government takes the hotrods away! I want to tell the grandkids some day, about the firebreathing, smoke belching, motorhead cars of yesteryear!<BR> Are preformance parts for a 300 expensive? Or do I just go for shear cubic inches? Awaiting your answers Thanks,Greg

Link to comment
Share on other sites

Guest John Chapman

Greg,<P>First, there aren't many performance items made for the 300. With the 300-4, you've got most of them already anyway.<P>The 340 will bolt in, but that isn't much more than you've got already.<P>Old hot rodder's creed: Cheapest way to power is cubes. Based on your desire, I'd say get a 455 with a later model automatic like a 200R4. There's plenty of room and Postons and TA both have motor mounts for the swap. Depending on transmission, you may have to modify the driveshaft.<P>A lot of power is good.<BR>More power is better.<BR>Too much power is just about right.<P>JMC

Link to comment
Share on other sites

Go with the 455, as John has recommended.<P>There is a community of Buick performance enthusiasts who either have, or plan to have (or dream of having) 455 powered Specials/Skylarks/GS's. So, you will have plenty of advice and some specialized parts suppliers for that swap.<P>I'm happy with my 340, but if you're definitly doing a swap for performance, then go all the way with the big block.

Link to comment
Share on other sites

I have transplanted a 455 in my Special Wagon. Swap is fairly easy for engine. My problems were with plumbing. Best thing I did was switching from headers to cast iron manifolds (ported by G. Gessler). That made the engine fit easily. The rest of the task is plumbing-radiator hoses, power steering hoses, fuel lines had to be changed. Now the car just spins the tires at will with the stock open 3.23:1 gears. It is great fun. Good luck!

Link to comment
Share on other sites

Greg might I also remind you that the 65 was also available with the nailhead 401 as a GranSport. This combination should be easier to install, but would have to agree that the 455 has more speed parts available today.<BR> Both motors will "Lite your tires" shocked.gif" border="0 Enjoy, Doug 65 Skylark GranSport (tire fryer) rolleyes.gif" border="0<p>[ 01-11-2002: Message edited by: DugsSin ]

Link to comment
Share on other sites

Guest John Chapman

Greg,<P>The problems with a 401 install in a non-GS Special/Skylark are:<P>--Requires A body only exhaust manifolds<BR>--Requires Nailhead only bellhousing pattern transmission vice the BOP pattern currently installed and on the 300-340-350-400-425-430-455.<BR>--Requires as much replumbing/rewiring as the 455 swap.<BR>--Requires 401 engine mounts<BR>--Premium prices for all 401-related perfomance/swap parts... if you can find them<P>IMHO, the most bang for the buck is the 455 swap. But I'd sure hate to have to feed all those cubes with CA-priced premium fuel.<P><BR>JMC

Link to comment
Share on other sites

GC,<BR> You can probably find a complete 455 in a junkyard with all the pullys and brackets still there. If you are worried about gas prices then you can build an 8.5:1 compression 455. You can get 350 horsepower out of a low compression motor with simple modifications, and it will run on cheap gas!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...