ok so i have a 350 , block # 10054727. an its carb (holley 600) holley intake, has the 193 swirl port heads. now i am on a tight budget, im looking to keep the heads stock because i dont have the money to buy aftermarkets at the moment, im wanting to put a cam it it that will work for the heads, im gonna change the valve springs an timing chain. my questions are, what is a good cam that will work for my heads, i dont know if my block is a roller block, could i use a lt1 cam if its not a roller block? an whats a good set of valve spring and timing chain set?.

this will be my first motor i break down, so any help will be greatly appreciated, thanks!

 

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Wow man. This really helps me out. Im excited on this project. Ill keep you posted, i have a question. Do u kno if this cam is loupy?

 

Any "off-the-shelf" cam that has a lopey idle won't start working until after your current heads have given up. You'd have no low-end thanks to a "lopey" cam, and no top-end thanks to those heads. The airflow has to match the RPM. You can get mild cams to sound mean if you use headers and a decent muffler, but it won't "chop". You wanted something that'll improve performance with the rest of what you have, I can say from experience that this will do very well.

 

The casting for that engine is the same for mine and mine is not a roller block. It is an 86' and up block, 2 or 4 mains, 1 piece rear main seal, "some made in Canada."

About the heads, I had the same ones on my block originally and from what all I've researched they aren't ideal for performance. I don't know how tight your budget is, but you could probably find some better flowing Vortech heads for a pretty good price.

 

]The casting for that engine is the same for mine and mine is not a roller block. It is an 86' and up block, 2 or 4 mains, 1 piece rear main seal, "some made in Canada."

About the heads, I had the same ones on my block originally and from what all I've researched they aren't ideal for performance. I don't know how tight your budget is, but you could probably find some better flowing Vortech heads for a pretty good price.[/QUOTE]


Alright. Which is better a 2 bolt or a 4 bolt? And if i got vortec heads would it work with my holley intake? Thanks for the help man.

 

so is this cam that u suggested considered to be mild cam? I have headers, an a flowmaster exhaust. and what hp increase will i see with what you have suggested? thanks again

 

4 bolt mains are better for more power. But 2 bolts are good to probably 500hp and 6k RPM. The block I have is a 2 bolt.

The vortechs probably won't fit that intake. Vortechs have a special intake style from what I've seen. Do you already have that intake?

 

alright, this is a dumb question ,but how to you kno its it a 2 or 4 main? I know you gotta pull the pan, and yea i have the intake. its a complete motor.

 

Pretty much what it says. 2 bolt mains have 2 bolts, 1 on each side. 4 bolt mains have 4, 2 on each side. Pull the pan and look at the caps holding the crankshaft in place. There should be 5. 1 on back, 1 on front, and 3 between. Example:

The top half of the circles, except this is upside down when you look at it, it'll be opposite. This is a 4 bolt as you can see if you look at the 3 in the middle.

 

Alright. Im.gonna start pullin this motor outta my 82 in the next week or so. Ill keep you posted man. Thanks again for the help.

 

Also, what valve seals should i get? The motor set awhile and i know the seals need to be replaced.

 

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