joshwilson3

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radiateu2

Josh Try here for takeoff cam www.goautocenter.com

ShiftyCapone

iTrader: (7)

The vortech cam is a bit smaller than the LT1 but will still work fine. You can re-use your rockers, pushrods, and lifters with either of those cams. You will want to change out the valve springs but that is no big deal. You will want to look into a custom tune to maximise both of those cams potential. You will be happy with either of those but I would go with the LT1. It is a bit bigger, and can be had for the same price.

joshwilson3

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radiateu2

Josh the cams at the go auto center have virtually zero miles on them what they came out of I dont know these are chevy stock rollers and a few zz4 take offs. people buy engines from this place and swap the cams in them for something else before the engine is installed. figure out what you want for cam specs and go for it. these cams are cheap....they go for almost 3times what these are new. Oh and these guys are good to work with i have bought stuff from them before

radiateu2

for what its worth I like the specs on the first cam for a 305 the lift wont be a problem with stock springs and the 109 lobe seperation will offer a nice smooth idle

joshwilson3

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radiateu2

What heads do you have.....TBI I hope its not the swirl ports..the flow is pretty crappy on them.

radiateu2

If you order the cam from Go auto buy the bronze gear from them too.....its cheaper than any other place that sells them. Do not use the old cast iron gear with these cams.

BadBlue91RS

I've got a LT1 cam out of a 94 T/A if you're intrested. $20 and you pay shipping (15.00).

joshwilson3

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BadBlue91RS

Porting the stock TBI heads is the equivilent of pissing in the wind. The best thing you could do to those heads is a 3-angle valve job.

BTW, the LT1 cam I have came out of a 94 T/A with 60k miles on it and the only reason is was removed is cuz the guy went with the LT4 hot cam kit.

If you're intrested in buying the cam hit me up on AIM at: BadBlue91RS

joshwilson3

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BadBlue91RS

The 3-angle valve job is a angle cut they put on the heads (not too sure about the job myself) and would cost you roughly $100 to get done. You can most definently port the heads, but it will yeild minimal results due to the MAJOR casting imperfections on the TBI heads.

I'm not gonna be useing the LT1 cam like I planned cuz I came accross a 400 sbc for $200 and i'm gonna build that up with my huge incometax check.

You could get yourself some fairly cheap shorty heads and a cat-back system. That would REALLY give you some results on the butt-dyno.

radiateu2

Go to the machine shop that will do the valve job and ask them if they have a set of 416 or 081 heads for you to buy....Since you are on a budget you should get these for cheap Take them home and port and polish and have 1.94 valves installed on the intake side. I promise with the cam we discussed from go auto you will see a modest improvemnt. atleast I did with my 305 the bottleneck in these engines is the exhaust system...it is way to small for these engines. that should be your next upgrade after getting some decent heads..I doubt a 3 angle valve job will yeild you any gains with your current heads....if you have a boat they make great anchors.

joshwilson3

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ShiftyCapone

iTrader: (7)

A 109 LSA will not make for a good idle. 112 and higher is for smooth idles. 109 will have some lope to it and make tuning a bit trickey. Buy the cam you saw out of that vette. Roller cams do not wear the same as flat tappet cams and it is okay to use one that has some miles on it. You have to stay under .480 lift. The stock valve seats can only handle that much. That is what makes the LT1 such a good canidate. Good LSA, within max lift, cheap to get, great tunability. I have a LT1 cam out of a 1996 Impalla that has 111 LSA (more than your average LT1 cam throughout the years) and I am expecting some lope after I get her fully tuned.

joshwilson3

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ShiftyCapone

iTrader: (7)

What you are refering to that needs to be ground down is the dowel pin on the end of the cam. This pin drives the water pump in all LT1 applications. Since your water pump is belt driven you do not need this and it will not fit under your stock timing chain cover. It took me about 2 seconds to cut it down. I just measured the stock length when I got the stock cam out and matched that to my LT1 cam. It is a piece of cake and I did it with my dremel. Any stock replacment roller timing chain set will work. Your best bet is to get a stock replacment timing set from www.gmpartsdirect.com. I belive they have it for 27bucks and that is more than enough for a 305 built or not. You are not making scary power numbers so you don't need anything special in this dept. You can resuse your stock pushrods (rods), lifters, and rockers. You really only need to upgrade your valve springs. It is also a good time to change your valve locks and valve seals. After the price of the cam you can do this swap for about $180 in parts. (50 for springs, 30 for timing set, 50 for valve seals and locks, and 50 for gaskets and regular modding expenses). Really not bad when you think that 250 bucks can give you 30hp or more.

joshwilson3

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ShiftyCapone

iTrader: (7)

Save your money on a sinlge roller timing set. The double is way overkill and you will be fine with a single unit. Even if they are the same price (which they shouldn't be, I have seen basic double rollers go for $$$). Jegs and summit both have them for 40 or 50.

Well as for heads you have a few choices. Stay away from L98 350 heads. They have the larger chamber and will decreases your compression ratio a bit. Some will say that this is okay if you use a thin head gasket but why try it. Many people have lucks with 305 HO/LG4/TPI heads. The pre 1997 heads were the 416's you hear about all the time. They are a decent head, much better than the LO3 crud and respond amazingly to port work. Plus they can be had for about $100. Using these heads take a little more to get them to work as a "bolt on". You have to convert to self alligning valvetrain to match hwat you have stock and you will also have to elongate the center 4 intake bolts. These heads also implement perimeter valve covers and you will have to ditch your stock ones. If you want a true bolt on head look at the 081 (305TPI) heads from the 1987+ cars. They have the same vavletrain as you and a little port work can take those heads very far. You can get either of those heads out of a yard for about $100.

Now as for gasket set there isn't a whole set. You need to get a timing cover gasket set (comes with timing cover gaskets and water pump gasket)
Intake manifold gaskets (comes with distribuotr gaskets and water neck/thermostat)
It may also be a good time to chang eout your TBI gasket as well. You will have it of so might as well replace it. This is just to get you started and a search on the matter will have you reading for days.

joshwilson3

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ShiftyCapone

iTrader: (7)

Yup that will work fine. I had actually purchased that timing chain myself but I sold it when my LT4 cam swap changed awhile ago.

Dewey316

i have a true roller, its summit brand, cost $42.

after comparing it side by side with a compcams chain, it is the same thing. casting markes, numbering, ect is all the same.

http://store.summitracing.com/partde...rt=SUM%2DG6601

joshwilson3

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Dewey316

it is a double roller.

it is exactly the same as this compcams part.

http://store.summitracing.com/partde...art=CCA%2D2136

ShiftyCapone

iTrader: (7)

Any reason why you went so beefy? Does it fit under your stock timing cover. A single roller will sufice for a built 305 but a double roller is added insurance. You will be fine with either. It's just how much you want to spend. You usually don't see double rollers until you get into the 400hp+ range.

Dewey316

the price was right on it that is really the only reason i went with such a stout chain. come on shifty, i like overkill, i had to talk myself out of the jessel belt drive.

as for fitting, it should, but i won't know until i get everything installed.

**note** if i get donations for the 'Help John Go Fast' fund, it will get installed sooner

ShiftyCapone

iTrader: (7)

Yea I couldn't agree more. Plus you get the added assurance of hard core parts that make you sleep tight at night. I thought you had this in already and I was wondering why you put it on with the stock cam and such. I understand now. It will be interesting to see how that fits under the stock cover. The stock cover is very thin and seems like it barely covers the single chains. But for others reading this, a single chain set-up will work just as well for a built 305. Just stay away from the $10 autozone specials out there. $50 is what you should spend to be okay and $100 to have a bullit proof set-up.

Dewey316

yes, it would be serious overkill on a bone stocker. it is going on when i finaly get around to the head/cam/intake swap. i am so close, but still need some misc. stuff (gasket set, pushrods, ect) to do it. everyone cross your fingers that when i do taxes this week, it is good news, if i have to pay out on them, the project is on hold for even longer

ShiftyCapone

iTrader: (7)

That would stink. Plus you need to get some dyno numbers with all of your remaining stock stuff. What heads did you decide to go with? Were you going with 416's or 081's? I would imagine the 416's since you said you need some new valvetrain stuff.

Dewey316

yes, i have 416, they are ported, i have the studs/guideplates, valves, ect for them, i just need to get them to the machine shop so they can take care of the stud bosses as valveguides for me, since i will have about .525 lift. i have the full roller rockers, cam (sort of, that is a long story, btw, anyone want to buy a UltraDyne racing cam ), intake, and timing chain. i still need, the pushrods, gaskets, fluids, and holley TB. then i am golden. the project got set back, i bought another car, so that i dont' have to drive the camaro to work, it is a garage queen now, i also moved in mid dec. so the moving costs, ect and the new car, put a halt on play money for me.

ShiftyCapone

iTrader: (7)

Gaskets will set you back about cool hundred. Too bad you don't have a TBI unit yet. There was a new holley on ebay for 150 a few weeks back. Did you decide on what injectors you are going with?

Dewey316

no i haven't, i need to do some math i will likely go with the big boys (85pph ?? ) i THINK this combo can go 300hp at the crank, in which case i would need the big bad injectors.

ShiftyCapone

iTrader: (7)

Yup you are right. You will run those at a pretty low PSI as well. My buddy Chuck is getting his 454 unit on this march with the 454 injectors as well (85pph). He plans on tuning them with low PSI since they flow so much. He is shootin for 260 at the wheels.

Dewey316

that is what i figured, i would rather have to tune them down, as opposed to trying to crank up the pressure, and find out they go static at like 4k