Small Block & Big Block Chevy Specific - 305 question

Does a 305 use a 283 block? And are there any aftermarket 305 blocks? I doubt there are many but just kind of curious

A 305 is a 305 block last i checked. No aftermarket for the lil guy.

The 305 has a 3.736" bore and a 3.48" stroke crank. The 283 has a smaller main journal diameter than the 305, with a 3.875" bore & uses a 3.00" stroke. A 307 block has a 3.875" bore with a 3.25" stroke crank and has the larger main journals like the 305 & 350's. http://en.wikipedia.org/wiki/Chevrolet_Small-Block_engine

this is true.

why would you want an aftermarket block though? they are a dime a dozen at any local boneyard...

Even better, why not go with a 350? More cid, more parts availability, same outside dimensions, and more power? The 305 was one of the biggest pigs I've ever drive (no offense, just MHO).

Chris

I love the guys that build the 335 strokers, what better way of saying "I just wanted to waiste some money."

the 305 was a bad motor and i got rid of it for an ls1, but there is still a place in my heart for that ol '305 sitting in the corner. I think I might do something with it one day.

We did a '87 Monte SS swap w/a 383 (350), everything power steering, a/c, wiring all changed over easily.Noticed a huge difference afterward,was like a new car!. f.w.i.w.

the 305 was a bad motor and i got rid of it for an ls1, but there is still a place in my heart for that ol '305 sitting in the corner. I think I might do something with it one day.

Burn it... :jest:

Burn it... :jest:

Im thinking more like a table or work bench or something.

dont waste your money

Im thinking more like a table or work bench or something.


http://www.mitchell.derbycounty.co.uk/EngineTable.jpg

I would love to have one of these in my living room.

Chris

!!!!^^^^ I totally think i might have to do that one day!!!

I kind of like the idea of a well built 305. And I know it won't ever be as fast as larger displacement engines but people wouldn't believe a fast 305 existed and it'd be cool to be like yes it does.

i say go with the coffe table idea:D

I assure you I know how well built 350 + can be built but if I go that route I'd want to get a good solid block and that'd cost me more. I'll probably go with the built 305 for awhile then get a different block + heads. 305 is a lot cheaper cause you can use vortec heads for very effective results

Man, the thought of building a 305.....just couldnt bring myself to do it.

i'm talking to a guy that's helped build several 305's, guy he knew made quite a bit of money making bets on how fast his 305 was.

I assure you I know how well built 350 + can be built but if I go that route I'd want to get a good solid block and that'd cost me more. I'll probably go with the built 305 for awhile then get a different block + heads. 305 is a lot cheaper cause you can use vortec heads for very effective results

Why would you use a 64cc chamberd vortec head on a motor that came stock with a 58cc chamber head?? You'd be running like 8.5 to 1 compression.
I used to run 305's in a street stock (circle track car) because that was the rules. I felt gay calling summit and ordering 334 ci pistons for a stroker 305. I wouldn't ever think about putting a 334 in a street car, but for a race class thats's rule book states "you must run a 305 block w/ readable casting #'s", it made it a little bit easier for me to run up front. Ive got 3 complete 305 roller (87-92) motors at the house, and the only reason I keep them laying around, is for weigh outs, mock ups, clearance work for chassis, or for making a body a runner/daily driver. I wouldn't waste my $$ if I were you.
But thats just my .02.

And by the way, 350 pistons (forged or hyper.) are about half the price of 305 pistons. Cranks and rods are the same price...so...their more expensive.