grimlock34

iTrader: (1)

Ok so I resently had a 5.3 stage 2.5 heads from tsp along w tsunami cam, lt pace and ory installed and rod bolts to strengthen the bottom. Went to RPM in garner to have it tuned, first pull nothing done, 418 hp 385 tq. second pull w some changes, lower and so on untill a terrible clanging sound durring a pull. Turned off and started again. Not making sound at idle but after 1500 there it goes. pulled valve covers off and inspected heads, good. Took switches off of injectors one by one while car was making noise and found out it was the first cylinder. Likely a bearing they say, idk. Looking for some help. Any info would help thanks guys.

grimlock34

iTrader: (1)

Should i rebuild the motor? Running on limited funds so upgrading at this point isnt doable. Just buy a shortblock and replace it?

grimlock34

iTrader: (1)

so a couple of guys say it was the mechanics fault when he installed the rod bolts. Say he should have put new bearings in and could have forgotten to tighten one. May have been missmatched rod caps, who knows untill it gets broken down. gonna see if he will take a look at it.

butler

You won't know till you pull it. Could be one rod caps didn't get torqued down. If it is swithced rod caps-bad. Hope it turns out okay and is something simple.

djfury05

iTrader: (30)

RPM is a very respectable shop and I know everybody there. I wouldn't bet it was there fault but only time will tell. Do you know who did the work there?

grimlock34

iTrader: (1)

Ryan tuned it. but they didnt work on it. it wasnt anything they did. was a guy from fort brag that has worked on alot of ls1s before.

djfury05

iTrader: (30)

was it an actual shop or just a regular guy?

grimlock34

iTrader: (1)

A guy in the army. Names brandon. Hes done several head and cam swaps on ls1s ls2s. You can look up his work on youtube under tsunami cam camaro. his user name is socumguy or something. My vids are there to.

squale iii

You make it sound like shop workers aren't "regular guys" lol.

ShortChevy

iTrader: (21)

FYI, you should never just flop new bearings in while doing the rod bolts. New bearings require the big end to be put back in round. Also what rod bolts were installed? ARP's or Katech's? If you used ARP's the big end needs to be put back into round as well. Katech's are the only purely drop in rod bolt.

grimlock34

iTrader: (1)

it was rod bolt only and they were arp.

djfury05

iTrader: (30)

Lol touche, I guess what I was implying for example would be someone on here who never did a cam swap etc and looked up JRP's guide on LS1How To

When are you gonna have the motor apart to look at everything OP?

grimlock34

iTrader: (1)

soon hopefully. will keep everyone posted. i dont have the tools and equipment so ill have to pay someone to do all the work. the guy that did the work is in the military and just got into med school. got shipped to texas for that so he cant do anything for me. This was all unexpected so hope to get workn on it though.