LS1 cam in 91 305 TPI ?
 

Does anyone know if the cam from a 1999 LS1 will work in a 1991 305 TPI? Just wondering ?

No, not even close, Putting a Cam designed for 325 HP into a 170 HP motor would be a bad idea. It would just choke on it anyway. If you want a new Cam then get one designed for your motor. You do not want to push that 305 much over 220 HP. Much over that she will give up on you.

Other than what Gorn mentioned, the stock cams for the Gen III/IV/V engines are completely different than those from the Gen I/II. Stock cams for the Gen III and up don't have a provision to drive the distributor, although you can buy them with one, however, the firing order for them is different than that of Gen I/II.

If you're looking for more power, find a nice 350 to either drop in with some minor mods or build it up and stroke it.

I have a 350 block already but I want to stroke it and the cost of a stroker kit for a roller cam block and the machine work is pretty high. For now I just want to get the car running again with a little more power by a little bigger cam. I have a cam, but it has .500 lift, which is too much with the stock heads.

I you can get your hands on a Vortec block 880 casting from 1996-2001 they are all roller cam blocks. You can reuse the lifters sprider and dog bones for the hyd roller cam. These blocks have very little where and you can just order a 383 stroker kit for the one piece block and it comes complete just have the block honed and jet washed and assemble. I do these block all day long. I have one under the bench right now with all Eagle parts and a 9.5-1 compression with a 64cc head. $1200 and you pay shipping for the short block assembley THEIR IS NO CAM WITH THIS MOTOR you need to get that your self. Just order one for a roller block and bolt it in.

is yours already machined. I can't find a stroker kit for less than $1100.00 for a roller, one piece seal block.

Go to Ebay and punch in 383 stroker kit. Look for the one piece seal STANDARD bore and free shipping. That kit is very heavy to ship. Clean hone and replace the cam bearing and galley plugs and assemble. Just a very little to clearance because GM already has a 383 stroker motor from the factory. They just use a 3.80 stroke crank instead of the usual 3.75. It just makes the motor a 377 ci for a lot less money.

It is just my opinion but someone that didn’t know there was a major difference in design between a 305 and a LS1 last week is going to assemble an engine for parts gotten from multiple sources based on something he read in a one paragraph post? This is not going to end well.

Please don’t take offense I have no idea your skill level I can just go by the question you asked. There is a lot of things that can go wrong with an engine build even if you buy all the parts from the machine shop that preps the block for you. I have seen the aftermath numerous times.

If you want to do something like this find a detailed build thread. Hopefully the poster lets you see the issues that arise during the build. Also you can get a DVD on how to rebuild a SBC. Check out the process and review the required tools to do a good job. There are a lot.

Here is a better option: Performance Computer Chip for 1986-89 TPI Camaro/Firebirds with auto trans. Much better acceleration and performance over stock. Blows away anything from the aftermarket like Hypertech or JET! Price is $65 shipped https://www.facebook.com/pages/Custo...49489875293854

Whenever you “tune” a stock engine all you can do is run it slightly more rich and add a little more timing. You can also adjust the shift points some. The difference is barely noticeable in a TBI 305. You can notice a difference in the 305 TPI cars but I would not define it as a big difference. It just wakes it up alittle.

Now what I am talking about is a dyno tune. There is no way ANY add on chip can be better than a dyno tune. The fact it handles sooo many different engines tells me it is nowhere near as effective as a dyno tune. There is no defect common across all those different motors that one chip could fix them all.