LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Starting my build

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Old Sep 28, 2009 | 01:19 AM
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Well i finally got a longblock to rebuild guy told me that is was from a 97. i was told differenty by the opti. he also said it had some kind of port job looks like chit to me more bad than good and a cam but dont know till the am need a hub puller. it blew a head gasket and looked like it sat forawhile like that. rod bearings look good and were STD size
what do i need to change the opti drive to the newer style. is it the same cover aswell?
My plain is Stock bottem end with a good set of pistions incase i spray all Arp hardware.{shold i go studded or bolts}
ported heads like the LE1's and a cam somewhere like the CC503
ill be going threw shorties as well need to stay smog legal
I WILL ACCEPT all pointer/info on parts. part numbers i should use.

What do you think happened to the heads would they still be good?



what does the numbers mean?
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Old Sep 28, 2009 | 02:32 AM
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build a stout 355 with the stock crank, 6" rods, and some good forged pistons. There are a couple of shops up in fresno that quoted me less than 400 bucks for manley forged h beams so there really is no reason why not go with rods as well. Definately get your heads worked and if you are looking for cam suggestions I would have to say Lunati 60121 is a great cam that easily passes smog and makes good power I made 339 on stock heads & shortblock through a stalled auto and pass smog creatively, dyno vid in sig
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Old Sep 28, 2009 | 04:17 PM
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Yeah 400$ more isn't much might and do it right the first time.
I can't get the damn crank hub off I broke one of the ears off!!! Any suggestions, I have a correct puller wish I had a torch
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Old Sep 28, 2009 | 04:33 PM
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there are numerous threads about the hub and the correct way to pull it off, if you just centered the puller in the hub and tried to pull it off that way than you are just pulling against itself and things are going to break. Make sure that you have something that will bottom out in the crank without marring the threads and push against that. Allen head bolts work good or a regular bolt then just put a socket (without ratchet) on the head of the bolt so the puller has a divot to help keep it aligned.
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Old Sep 28, 2009 | 05:38 PM
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Looks like someone was trying to make ski jumps in your intake ports, I would bet you will need to get a new set to have a real port job done on them.
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Old Sep 29, 2009 | 01:27 AM
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Well I got it off earler geez it was a pita. Cam was aftermarket 276HR-14
Valve Lift .510"/.510"
Duration At .050 220°/230°
Lobe Separation 114°

it looks to be in great shape minus some surface rust not sure if I want to use it or get a new one?!
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Old Sep 29, 2009 | 01:54 AM
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Thads a decent cam for a stock motor, but kinda small if your putting forged parts in there I would get something bigger.
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Old Sep 29, 2009 | 02:08 AM
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I'd like to but gotta keep it smogable 230/230 is the max I've heard
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Old Sep 29, 2009 | 02:44 AM
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yeah that is about the biggest you can run on a stock cube and pass smog, should make some good power and that grind is their XFI lobes right??
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