Question-REPOST

[92 Ty 1173]

As the title says I'm sure this is a beaten question but is are the sy/ty connecting rods and a SBC the same? If not what am I looking for if I want to use other that eagle components? Would an 89' 4.3 have the same crank as our trucks, could I use it as a donor crank? Is there a casting # I should look for? I'm trying to get a machining quote but the shop was questioning the fittment of parts. Thanks.

 

[typhoon92]

Re: Question-REPOST

This might help you out!
http://www.syty.net/forums/showthread.php?t=20725

 

[92 Ty 1173]

Re: Question-REPOST

Just printed 13 pages from that post, can't wait to read. I hope it tells what I am looking for. Gotta get it figured out so I can get this engine started.

 

[typhoon92]

Re: Question-REPOST

CRANKS
Chevy has used several different cranks in the 262. They came with one- or two-piece rear seals and in both light and heavy versions that were specific to each engine plant. Here’s an overview:


1985: The 1174N casting came with a two-piece rear seal and a flange in the back. See photo.

1986-’87: The 14088640 and 10105865 Tonawanda castings with a one-piece seal were both used only for heavy applications during these years. See photo.

1988-’98: The Tonawanda cranks were all 10105865 castings that came in both light and heavy versions.

1988-’98: The Romulus cranks were all 10055480 castings that came in light or heavy versions.

 

[Robert Lone]

Re: Question-REPOST

Mr WA,

Was that a 262 V8 or V6 you were referring to? They made both...


As far as the 4.3 V6 rods go, other than exotic odd-fire crank rods, they are all nearly the same. I could be wrong.

 

[typhoon92]

Re: Question-REPOST

Mr WA,

Was that a 262 V8 or V6 you were referring to? They made both...


As far as the 4.3 V6 rods go, other than exotic odd-fire crank rods, they are all nearly the same. I could be wrong.

Mr Robert that was V6

 

[Robert Lone]

Re: Question-REPOST

Mr Robert that was V6

Just making sure... :tup:

You said...............

Chevy has used several different cranks in the 262.

 

[92 Ty 1173]

Re: Question-REPOST

As far as the 4.3 V6 rods go, other than exotic odd-fire crank rods, they are all nearly the same. I could be wrong.

The engine builder said it is a clearence issue if I try to use standard rods.

 

[supersports10]

Re: Question-REPOST

The engine builder said it is a clearence issue if I try to use standard rods.

i posted that thread, i would be happy to help you out any way i can.

also i believe the rods from a sbc wont fit because thier too wide on the crank end of the connecting rod.

SS:tup:

 

[turbodig]

Re: Question-REPOST

i posted that thread, i would be happy to help you out any way i can.

also i believe the rods from a sbc wont fit because thier too wide on the crank end of the connecting rod.

SS:tup:

And they're smaller. The 4.3 has larger rod journals.

You can cut the crank down to fit, but I wouldn't recommend it.

 

[92 Ty 1173]

Re: Question-REPOST

The whole odd-even fire thing is quite confusing. I wish it was cut and dry like a SBC. I may have found a bowtie block to build.

 

[Robert Lone]

Re: Question-REPOST

The whole odd-even fire thing is quite confusing. I wish it was cut and dry like a SBC. I may have found a bowtie block to build.

It's easy...

Even fire is stockish stuff...

Odd fire is $$$$$$$$$$ stuff...

The bowtie block will accept either crank. :tup:

Zat help?

 

[92 Ty 1173]

Re: Question-REPOST

Yeah, thanks. I'm trying to justify the $$$ for a bowtie block build.