photo request
photo request i know this may sound strange, but im looking for photos of some stock LT1 and LT4 connecting rods. for those of you who have done rebuilds im guessing you may have some laying around you could snap a shot or two of. can you also please include the year and model of car they came out of? a while back i had to change out my oil pump pickup and the bottom end of the connecting rods did not look like any other chevy rod i had ever seen. just curious as to what others looked like that came of similar engines. thanks in advance.
Last edited by firehawk238; Mar 19, 2010 at 01:38 PM.
is their a difference in strength between the two? i had not ever seen a SBC I-beam rod without a weight pad until i pulled my pan off. ive built several small blocks and had never seen any without the weight pads. have my rods been changed? did some LT1's come from the factory with these rods?
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Originally Posted by Rebuilding the Chevrolet LT1 Engine
by Doug Anderson, Automotive Rebuilder, September 1999
by Doug Anderson, Automotive Rebuilder, September 1999
The original LT1 came with regular forged 350 rods, that were shot peened for localized hardness under the head of the bolt and nut. Powdered metal rods were phased in for the Corvette around 1994 and used in all of the LT1 engines by 1995. GM made the change because the powdered metal rods were cheaper to make and were much stronger than the GM high performance "pink" rods. In fact, they are supposed to be good for up to 450 hp. They are machined at the parting line so they can be reconditioned.
sweet, thanks for clearing that up. just looked odd to me at first, and hadnt had time to look into it all really. figured id ask on here and get the info i needed. i pretty much figured they were stock, but didnt know if maybe they were an LT4 rod, or something from a vette that got used in it. now i know. now im wondering just how far past that 450hp rating they will go before they give....... thanks for the info fellas.
