Slammed97dime

Ok ive got a few questions ive got a jasper crate engine and it came with the roller set up can i just use the roller lifters and pushrods with the lt1 cam or do i have to get the ones for the lt1 also ive got the jet stage 2 chip is that good enough of a tune to handle that cam or will i have to get a custom one thanks in advance

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ShiftyCapone

You can re-use the stock LO3 lifters and pushrods (assuming they are in good shape). The Jet chip is a waste of time and money. To properly tune your new cam it will require you to burn chips yourself. Fear not, there is plenty of info on this site to help get you started. No off the shelf chip will suffice.

Slammed97dime

Well that sucks tuning looks kinda complicated can anyone simplify it for me lol and were can i buy a cheaper cable ive got the money just dont want to spend 60$ on a cable

BOSS 357

Back once again..

Shifty, this is a GREAT article. This will be my first cam swap too and I was a bit nervous until I saw how simple you made it seem.

You didn't mention anything about degreeing the cam. I run TPI and a non-LT1 cam but I'm betting whether to degree or not is the same answer. So, is it necessary? If so, do you have another article on how to do that?

Thank you...
Eric

__________________
SBC 357-4BM, CC 302 roller, Dart Iron Eagle SS heads, ASM/Accell ported intake setup, Venom 30 lb injectors, descr MAF, cust FastChip, MSD ignition, open K&N filter, 180* thermo & manual fan switch, March polished UD pulleys, A/C & A.I.R. delete, Edelbrock headers, 2.5" true dual exh, T5, Strange 12-bolt/3.73 gear, wonderbar, tubular rr LCAs/trackbar/fr a-arms, Spohn fr coilovers, 1LE fr brakes, Alston Racing SFCs, poly engine/trans mounts, TQ arm bushing.

ownor

one more question, are you guys using any kind of cam button on this installation?

graebz28

If you have a 87+ roller motor, they incorporate a retaining plate that eliminates the need for a cam button.

ownor

thanks for clearing that up, i wasn't aware of the fact that the retainer plate eliminates the need for a cam button. great article btw *****

Gordiggz

A quick question I think I know the answer to:

I am building a 350 LO5 TBI for my 89 Formula. In your opinion, would it behoove me to install the LT1 cam now, and try to tune for it later, or get the 350 in the car stock and running, then add the LT1 cam later on with the motor in the car.

Obviously, it's easier to install a cam while a motor is basically ripped apart (at this point it's only the balancer and behind to remove). But would it just create a headache when trying to get the car started and running well after the 305-350 tbi swap? (all this based on the assumptions that 1- I've read the 305-350 swap sticky in the tbi forum and 2- I have no tuning experience)

Your thoughts are valued.

ownor

i would say it all depends on whether you have time to fart around with tuning it or not. if you need to swap it and then drive to work after the weekend the lt1 cam should go in later of course
i would really put it in with the engine apart.. about the tuning part, you might want to consider these two opportunities: if you say i'll throw in that lt1 cam (which is pretty mild for a 350 anyway), tune it and leave it like that for some years, you would probably want to burn a chip and leave it.
you wouldn't want something like the EBL (dynamicefi.com) then, because you will never need to re-programm anything -- on the other hand, even if you choose the fully assembled EBL Flash version, it's like 400 bucks, reprogrammable and has a lot more nice sh*t put into it than prolly any of the stock tbi ecms, and if you have to buy all the prom burning stuff you won't get away much cheaper anyways (but you could still borrow it or have someone tune it?)
just some thoughts hth, ownor

Gordiggz

thanks, ebl seems like an option to consider. Really though, I plan on doing the motor in affordable steps, tuning and learning as I go. Start with just the stock 350 and cam, then go from there.

Thanks for the advice, I don't want to hijack the thread though. Just figured my question would be relevent for many considering the LT1 cam as an option while building a motor.

Jono4820

New post to old thread..... I have done the 305 to 350 swap. I am pulling the motor this week to 'freshen up'. I have a 350 tbi (9C1) my engine guy tells me that I can increase the cam size slightly and the computer will make up the difference. I already have the bigger fuel pump and the 65 lb./hr injectors. Is this true or MUST I burn a new chip?

xNJ92RSx

kind of an old post, but whats the idle like? choppy, lopey etc....

Gordiggz

I'm in the process of the 305-350 tbi swap myself and have done hours upon hours of research (mainly here, thanks again smart people )

From what I gather, you COULD run the LT1 cam without tuning, but the gains from the cam would be minimal if any. It could even take you down a notch.

It seems to me that more power could be made by tuning alone than doing the LT1 cam swap without tuning at all. Obviously if you're going to tune and you're already "freshening" might as well toss the bad boy in there (can't argue w/ it's price!) since it's tried and true and with some advice from the tuning gurus here you could get it running very strong.

These are basic assumptions I've made based on using an LO5 truck 350... not a 9C1. Assuming you are using the 9C1 ECM, things might also be different. Chances are though, you would really want to get into tuning it. I'm not at those stages yet myself, but it seems to me that if you have a computer, an ALDL cable and a dream you can pull it off (with some serious effort).