307 engine rebuild ?

[BCOWANWHEELS]

Get a genuine gm engine. All the others cut quality to maximize profit margine. U better listen to me. Theres a reason there cheaper than gm. Up to u.............

[Ventanakaz]

Originally Posted by BCOWANWHEELS

Get a genuine gm engine. All the others cut quality to maximize profit margine. U better listen to me. Theres a reason there cheaper than gm. Up to u.............

...Hey BCOWANWHEELS, Can you please provide a link, Thank you.

[geezer#99]

Just like this.

https://www.jegs.com/i/JEGS/059/0282/10002/-1

Can’t beat the price.
Not hard to make 350 hp with a cam change too.

[special-K]

Originally Posted by siggyfreud

I guess it all comes down to what you're used to. I find my 300hp 350 in my truck to be pretty slow, but I've owned/driven a number of 500+hp vehicles.

If your goal is to cruise or get around town, build towards that goal, and 300hp is probably enough. But if you're like me, like the feeling of acceleration and speed, then that 307 is never going to satisfy you.

Like I said, unless you are jaded. I had a lot of fun ripping it up in that truck with a built-up 307. And a 307 will outlast all the other SBCs. They are known for that. I was talking "need" as in daily driver and normal responsible driving. 300hp ain't wimpy. I have other toys to get irresponsible with when I want to have fun. I'm going to have a lot of fun when my '67 is done, running a 327/325 with an M22 behind it going to a 373 posi. Hardly dangerous, but it'll run out just fine for me. I spent $1,300 building that one

[BCOWANWHEELS]

well said

[MARKDTN]

Nothing wrong with a 307 if that is what you have. If you want to build your own engine It is as good as any to learn. If I had a 350 I would probably build that before a 307 but whatever. Also 2 bolt mains are more than adequate for any roughly stock or mild performance application, 4 bolts are nice but not worth extra effort to obtain. The later 1-piece rear seals and center-bolt valve covers really help with leaks. If I was to buy anything it would have those two things. Also the roller cams in later stuff is nice to have and lots less worry about cam break-in in a new build than with a flat tappet cam.

[BigBird05]

"There is no substitution for cubic inches" Smokey Yunick

[special-K]

Originally Posted by BigBird05

"There is no substitution for cubic inches" Smokey Yunick

He was already gone before 8 second turbo'd 4 bangers came about. The rules have changed.Some buy HP while others enjoy building it. Gotta love a good old 301 anyway!

Grumpy Jenkins 301 chevy on dyno - YouTube

[siggyfreud]

Originally Posted by special-K

He was already gone before 8 second turbo'd 4 bangers came about. The rules have changed.Some buy HP while others enjoy building it. Gotta love a good old 301 anyway!

Grumpy Jenkins 301 chevy on dyno - YouTube

The same principle applies though. Forced induction is really just cubic inches on tap. Pound of pound of boost, the engine with the bigger static displacement will still produce more power.

[EZ4U2C]

Don't waste your time, even if you get 400 hp they are not strong motors. Go a 350 if you want HP and durability. Make you a nice man cave table out of the 307, it will give you and your buddies a lot to talk about.

[57larry]

parts cost the same, build a 350

[Ventanakaz]

Gonna go with an Eldelbrock 350 Long block crate engine, The engine block is a brand new 4 bolt main GM block. Thanks for everyone's input

[72 tigger]

Originally Posted by EZ4U2C

Don't waste your time, even if you get 400 hp they are not strong motors. Go a 350 if you want HP and durability. Make you a nice man cave table out of the 307, it will give you and your buddies a lot to talk about.

Nice table! I did the same thing with my 307

[special-K]

Originally Posted by siggyfreud

The same principle applies though. Forced induction is really just cubic inches on tap. Pound of pound of boost, the engine with the bigger static displacement will still produce more power.

But that turbo'd little 4-banger at 1/3 the displacement of a 454 can run circles around it. That is what I meant by "No replacement for displacement" doesn't hold water in these days since Smokey left us.

[Ventanakaz]

Update : I Finally found a crate engine I'm going with (Smeding Performance 383 Extreme), it will probably be in the truck in two months