enigine swap help

[hotrod87]

I still have the truck (i was only able to run it once.... with a bad plug wire firing to my header it ran 14.20's), my original plan was to find a malibu/monte and swap motors. I have a stout 700r4 that is waiting to go in the truck(currently has a th350). Since the motor is bad in the cutlass, i am going to let the truck sit a bit(my plans are now to either find a 455 or rebuild the 307 for the olds next winter, and freshen up the 383 with a milder cam mated to the 700r4 and make the truck my daily driver ) i most likely will get the 307 stroked and shoot for 5 to 550 hp

 

[DrRansom442]

Yanno, I know there are factions that want to see what can be done with a 260/307, infact my buddy was urging me not to chuck the 260 since all it seemed to need was a cam (the bolt that held the timing chain on snapped) ... he figured buy a second hand cam, use my #8 heads from the 78 350 and find an aftermarket intake and some gaskets - I still think he was crazy for even thinking it. Surpringly, when we pulled the intake and heads off the 260 (curiousity mostly) damn thing looked like a fresh rebuild. But I had my car at someone else's place and no spot to store a core. So, I let the shop owner scrap it (let him keep my uni-bell th350/crossmember too, and anything else that seemed semi-reusible). I just don't know what kind of returns one can honestly expect from a 307 and I'd imagine there'd be some machine work to stroke it. Just my $.02 ... unless you just have a stockpile of cores. I'd find a Olds 350 even a webmain like mine would be an improvement over the 307.

infact, let me retract ... webbed mains, all Olds engines since 78 have them. I think once you look at the mains on a 307 .... you will forget the idea of a stroker motor.

 

[hotrod87]

thanks for that....i am such an obvious "chebby" guy huh....lol

 

[FE3X CLONE]

If you wanted to build a really stout forced induction engine, a 350 Olds Nascar block or a 350 D or DX block would be the absolute best to go with. These stock blocks can handle 1500+HP with the right parts in them.

However with a street Olds, its hard to beat a big block. When I get around to doing more of a driver/cruiser build, I'm going to look into the many 496cid builds. These things make monsterous amounts of torque.

 

[joe_padavano]

infact, let me retract ... webbed mains, all Olds engines since 78 have them. I think once you look at the mains on a 307 .... you will forget the idea of a stroker motor.

Actually, all Olds gas blocks since the 1977 model year have the windowed main webs.

 

[DrRansom442]

my bad thought the '77 was still swm .... maybe that's just the swm403s Mondildo seems to think exist, but years of fruitless searches haven't found.

 

[CuttyboyJd]

if i get the 350 engine and order the 700r4 transmission do i need a one piece case or the 2 piece case?

 

[DrRansom442]

if i get the 350 engine and order the 700r4 transmission do i need a one piece case or the 2 piece case?

2 piece case?

 

[CuttyboyJd]

Thanks just put the order in i think im going to rebuild it with a stage 1 kit

 

[hotrod87]

if i get the 350 engine and order the 700r4 transmission do i need a one piece case or the 2 piece case?

2 piece case?