ok i have a weak and dying 86' 305 TPI and so i want to put a 350 in. My father has the idea of using a truck 350 and putting my 305 heads on with my TPI set up. I dont have the casting # ill look when i get home from school. I think this set up will work If i use a thicker headgasket. I want the truck motor to be a roller so is thier a certian casting number or viechle i need to look for it in? then use roller rockers. I think the springs will withstand the lift. Prob the compcams roller cam for TPI setups. Any ideas
Thanks for the help and advice

 

Believe it or not, on a website full of cars with aging 305s, nobody has ever thought of taking a newer 350 and moving their heads and intake over.

You might do a search and prove me wrong...

 

As long as the block is an 86 and newer . It would work.Cause they changed them in 87 or 88. I believe in 88.Just saying you couldn't do it if it was a newer block. Something about the intakes not alignin up.

 

newer truck blocks from Vortec equipped vehicles would be easy and cheap to get. Just need Vortec TPI manifold if you use TPI. Gonna need 350 ecm and chip. 350 injectors too.

Stock 305 heads on 350 will raise compression ratio but the small runners and valves would hurt flow performance so i wouldnt use 305 heads. Also bore diameter isnt the same so not sure how they would work.

Try to find a 350 block from L98 vette or something with L98 heads. Kinda Cheap and makes decent power and will work good together.

 

Well i need it to be cheap. I dont want to switch to vortec. i mean out of lk a 88-94 truck with either flat top hydrolic or better a roller lifters. I just need a good engine that has potential and its cheap. Im a student surviving on 400 a month from work. Not to say i want it to be a junker. But under 600. Just a cheap motor, rebuild, and a 350 prom and injectors. Prob get most of the stuff off ebay. not the motor though

 

Older.

 

Will you be doing the work yourself, or having someone help you?

 

I will be doing everthing but the machining. Ive done a tranny rebuid and im about to lay paint down, so im just gona stick to doing it by myself. My buddy's helped me sand though. Also i guess i need a used intake manifold to fit the centerbolt heads. I think? Right? I thought the only difrence on the TPI between years were the coldstart delete.

 

Okey dokey, good luck w/ those flat top hydrolics...

 

I think he meant hydraulic flat tappet lifters.

 

Ah. I guess I misunderstood what this meant:

"with either flat top hydrolic or better a roller lifters."

 

Yea i ment hydraulic flat tappet lifters or roller lifters. It depends what i can afford when i rebuild the motor (well a motor).

 

bump

 

You know. Its one of those things that just keeps going.. You'll get a short block squared away, and find out 305 heads are prettu useles. Then you'll pick up a set of vortecs, and realize after the machining and spring upgrades, they really don't flow what the aftermarket heads do.. Then after you spend all the money on the vortec intake manifold (assuming you stay the vortech route) you'll realize TPI in itself is not really a great choice.

If this car is not a daily driver (and I'm hoping an 80s fbody is not), then i'd look into building a fairly sout (400 or so hp) n/a motor. Figure around 10:1 compression ratio, decent heads in the 240-250cfm range, springs to deal with your moderate (.500-520 lift) hydraulic roller camshaft, and an intake designed for a 1205 (or better yet a 1206) port. (hsr, victor efi, etc).


Then consider prom tuning with a '730 ECM.

About the best advice I can give you, is listen to folks with proven combos that have built and raced a motor or two. We've all done stupid stuff, and pretty damn impressive stuff. So their is a lot of info floating around. Stay away from anyone who claims to be a mechanic, but infact does oil changes and brakes and has never really built an engine before.

-- Joe

 

And why, pray tell, do you hope not? Do you feel the cars are lacking in some way? I have driven my "80's f body" daily, for the past 20 years and don't intend to stop driving it any time soon.

 

As much as I love my 80's fbody, I can't really insist on comparing it to a modern vehicle for daily driving back and forth to work, in varying conditions.


But don't fret. I would't drive a vette as a daily driver either. To me a fbody is a fun car. a weekend car. a track car.. Just. Not a daily driver.

-- Joe

 

Well it will be a daily driver (if i ever get it out of the garage, besides just turning it around). Im a HS student, 16yrs old. I want to just park next to some eclipse, or civic and let it rumble. I bought the car a 15, replaced the fuel pump my self, rebuilt the tranny at 15, and now am about to lay down color after a year b/c of lack of time and cash flow. I belive my block is cracked, b/c the heads were magnafluxed when i had them off and they were ok, and its losing antifrezz. so im looking for a streetable motor close to stock. and i am willing to do a regular rebuid. I aperciate all the help from these boards, the help me learn alot more about these cars. --Alex

 

..

 

I can relate to that! Now imagine burbling it through the parking garage of a Fortune 50 company and parking it next to the Benz/BMW/Porsche crowd.

 

Haha. Sure that goes over well.

-- Joe

 

Yea. So to get on topic any good ideas for daily driver motors. I think i might go with a old 4 bolt 350 truck block and start their. I want to keep the TPI. Gas mileage is not a concern. Just $$ flow.

 

BUMP