OK, like the title reads, Why don't we see guys building odd ci. engines anymore?
I'll list a few.
321ci. S.B./ 400 block with a 3" stroke crank.
347ci. S.B./ 400 block and a 3.25" stroke.
353ci. S.B/ .030 over 400 block with a 3.25" stroke.
377ci. S.B. is still pretty common.
But, the 388 destroke is not. 400 block with a 3.625 stroke.
The 406,412,415,421,427,434,441,454 and even 482 ci.S.B.'s seem more common than they used to.And I've heard rumors of a 500ci. Gen.1.
Then there are the 302,327 and 350 block versions that range between 301 to 396ci.
Not to mention all the in between sizes with the 283,307 and 305 blocks.

How about some B.B. versions.
The 439 which uses a 4.310 bore and a 3.76" stroke.
Or the 522, which used to be the hot ticket for a heavy car,but has been seen less over the last few years. I think the 540 has replaced it.
Even the 427 is becoming less common. Please list some more if you have a less common one.

I wonder why it is.
Maybe, cause most people feel that more is better. But, at times I just don't know if that is true.Or, should I say," at times, I know it isn't true."
Maybe, it's just easier to stay with the trend and so that's just what people do.
But, "I prefer to be different."


Post up some odd ci. engines you have built.Maybe, some upsides or downfalls would be nice.How they ran or how you felt they were lacking.

One more thing, if you prefer the new style LS and LT engines that is fine, but please don't bash our older generation style engines here. I'd love to hear of some odd ci. combinations for them,though.
Thank you,
Eric.

Donno, but I figure a 4.375" b x 3.76" s = 452.2" w/ say, .400" longer rods would be a heck of a short-stroked BB engine.

Short-stroke 454 is all..... And I bet it will make 75 to a 100 hp more than the same built 454!

pdq67

my friends got a 388... but its a 350 60 over with 3.75 crank.

no replacement for displacement.


aaron

Cheaper to use off the shelf pistons than to buy w/custom pin heights.
Shelf pistons tend to follow request trends ,so the odd ones don't reach full production.
So ,I'd guess cost.

How is the Nascar 358 c.i. configured as far as Bore and Stroke?

4.185"(max) x 3.25" for the R07.
Bore size varies so they can rebuild and that changes the stroke to keep the 358".
Rods are 6.0/6.2.

I'm running a 439 BB.. Simple, Straight forward, High revving and plenty of power... The best part is, No 'special" parts needed. 454 4 bolt block +.060, forged 427 crank, rods and pistons, 300ish solid cam.. Its put my 69 deep into the 11's shifting at a conservative 6k with a ST10 and 4.56 gears. I've pulled 7k and still haven't found the top yet... When the car goes back together, I may add some AFR heads and a roller but plan on keeping the bottom end unchanged..

There's the 434-396 block with 454 crank. I've seen a few old 409 blocks with 454 cranks.
I've oftern wondered about these gaint torque motors/cars being any quicker due to lack of traction.
I guess it don't matter if we are talking tubbed with 4 link rears vs basically stock suspensions.

I'm doing a 511 CI BBC .060 4.375 stroke. Same kit .030 would be 504

Does anybody recall the 427 blocks that were used in C-60 trucks? Those were the ticket back when I worked at a Chevy dealer back in the mid-late 70s....I always thought they could take a huge bore because of beefier cylinder walls...seems like the decks had to be milled to use standard L-88 rods....
might have that wrong but one of the techs built one for a jet boat that was supposed to be close to 500 cu in but I don't really know how that came to be with bore and stroke configuation. I recall hearing about "Canadian" blocks for 283s and 327s that allowed for much larger bores...may have been a myth also.
jim

Jim,your close but....
Those truck decks were taller (10.2 vs 9.8) but the walls were standard.
Your thinking of the BowTie blocks that could take a 4.6 bore -came in standard or tall decks.
Early 283's were capable of a 4" bore -called the 301 back then ,and it's where Chevy got the specs for the 302 Z-28.

Im running the 439 BBC. I just call it a 427 though so not to confuse people:D

i'm running a 0.030 over 427BB, ?? 433ci........

I just call it a 427 though so not to confuse people:D

I'm callin' mine a 427 as not to confuse anyone too l:)

i call mine a dual inline 4 cylinder so I dont confuse the Import guys.

4.185"(max) x 3.25" for the R07.
Bore size varies so they can rebuild and that changes the stroke to keep the 358".
Rods are 6.0/6.2.

Thank you Mike! :beers:

i call mine a dual inline 4 cylinder so I dont confuse the Import guys.

That would be a twin 4 or a dual 3.6...:D

i call mine a dual inline 4 cylinder so I dont confuse the Import guys.

l:)

4.185"(max) x 3.25" for the R07.
Bore size varies so they can rebuild and that changes the stroke to keep the 358".
Rods are 6.0/6.2.

3.26" stroke :D

Here is a photo of a 4340 Bryant Crank with 3.26" stroke. This crank is used in a 331 but could be used to build a 358

http://www.chevelles.com/showroom/data/500/medium/DSCF1856_1_.JPG

I actually run a 331.6cid

Its slow l:)

347's are very common. As are 331's.

Oops wrong forum.....

From my viewpoint, I am only going to build configurations that have parts readily available. Note that the actual displacements vary by bore size, etc. So not everyones 383 is actually a 383, etc, etc.

463 here. .040 over 454.

I think I'll put the 307 badges back on it 'cause it's just a small bigblock. :D

I have a 439 in the works, 454 block and my 396 cam. It won't run as good as KevinRs but I hope it gets close!!

I have a 396 Small Block that I broke in over 200 miles this weekend. I still can't wipe the silly grin off my face.

While the small combos are cool, most everyone has figured out that more cubes will outrun a 'cool number'

Parts is parts....and the most affordable stuff is "off the shelf."
The Vette has a 433" engine because all the parts I discovered inside were fresh and usable. The Elky got a 454 on the cheap because i had left-over heads from the Vette and I found a great deal on a shortblock to rebuild.

While the small combos are cool, most everyone has figured out that more cubes will outrun a 'cool number'

Parts is parts....and the most affordable stuff is "off the shelf."
The Vette has a 433" engine because all the parts I discovered inside were fresh and usable. The Elky got a 454 on the cheap because i had left-over heads from the Vette and I found a great deal on a shortblock to rebuild.

I have a 331.6cid and it doesnt run like a 331 :D

Best pass, no hook all the way through low gear leaving from an idle
60' 1.765 (spun hard)
1/8 7.49 @94.93mph
1/4 11.645 @118.98mph lifted 50' before stripe

327/365hp :D:yes:

the aftermarket offers so many cheap parts for the common displacements that it's really not necessary to build oddball combos with oem parts that you scrounge up locally.
that being said, i really want to make my 94 LT1 into a 302 using an L99 crank and rods.. you know- just to be different and make one of my Ford friends shut up about how freakin awesome his 302 is compared to a similar sized Chevy motor.

463 here. .040 over 454.

I think I'll put the 307 badges back on it 'cause it's just a small bigblock. :D

i want to see the first guy who pulls up with a 350 and looking at your 307 badges with a smerk on his face until the light turns green:D

i want to see the first guy who pulls up with a 350 and looking at your 307 badges with a smerk on his face until the light turns green:D

Nothin against Johns car, but if you think that way on regular occasion, you might wanna stay away from Tenn. "Josh Proffit", drives his 62 Nova on regular occasion, to Vocational School and it runs low 10's with a real 307.:thumbsup: