Joe Soucy

im gonna be getting either a vette or a trans am with the L98 and im gonna be planning on stroking it out to a 383 ... my budget is 2 to 3 grand .. i need help choosing the correct parts and such so please send some links.. also id prefer to be around 400 to the wheels ..
thanks

pantera_efi

iTrader: (1)

Hi Joe, the thread BELOW "speedmaster 383" IS WHAT you STATE.

The cost of the rotating assembly was $1850.00 ish.

THUS, what is your purpose ?

Lance

Joe Soucy

My purpose is 400 to the wheels.... im planning on pulling a motor and building it ... I have a total of 6-6500 K to spend ... in total.. meaning i can find a car for about 3500 to 4 grand to build off of and 2 - 3 grand in parts. im doing the work myself . Originally i was thinking the LT1 motor or the L98 .. i came down to either stroking out an L98 or porting heads and putting a cam in an LT1 but i need a MINIMUM of 400 to the wheels.... i honestly dont know what to do

pancherj

For your budget and 400hp, I would just find a car with a decent 350 and throw some money at the L98. Mine put down 400 with AFR heads, cam and an Air Gap with a 750 carb. Take the stroker kit money and invest in good heads!

89BANDIT

I hope yo find a perfect car. Because to plan on buying a car, then building the motor. Sounds like a Dream IMO. Your'e gonna need things like- Radiator, suspension, Tranny, stall, rear, exhaust. Whatever the car itself needs. If a 3rdgen it need Subframe connectors. You should start by buying a car you like. Getting it running 100%properly. Maintaining it. Then after its looking and running good. Then think about performance upgrades. You're plan really makes no sense. Because chances are, if you're buying a 2-4K car. It's gonna need alot of work. What I mentioned earlier. Prob some body work, paint, interior. The list is endless. Just buy a car. Start with that.

Joe Soucy

could u send me links to a set of heads,cam and carb swap for the L98 that would work good together ? Thanks

pancherj

I had old AFR 190 heads and a thin head gasket (10.5:1 compression) a 236/242 roller cam on a 109LSA, air gap intake, mighty demon 750, super comp headers. Peak power at 6500 and shift at 7000. Also used 4.10 gears in the stock rear and a 4000 converter in a relatively stock 700R4. 11.60@117 at sea level.

For the cam, get in touch with Mike Jones at Jones racing cams. Best in the business!!

AgFormula02

iTrader: (13)

I usually associate L98 with TPI. Take the TPI off and what is left? A SBC.
400 rwhp on a TPI takes a lot of money. Better off putting a carb intake

Joe Soucy

Could i use these parts with the stock L98 intake? or would i need to port or use an LT1 intake...?

pancherj

TPI intake will strangle it..but you could use it. I would go carburetor or Miniram setup. Mine made about the same power with the Miniram and the carb.

pantera_efi

iTrader: (1)

Hi Joe, I too KNOW the OEM TPI intake runners are VERY small, great Torque/low HP.

I have purchased OVER SIZE Intake Runners for TPI manifolds. (some porting required)

When you fit these you will more than meet you goal, cost is lower.

Lance, BTW I will order these for your needs if you ask ?

89BANDIT

Holley Stealth Ram (HSR) is the way to go for you're needs. AFR 195's would be perfect with the right cam.. All this has been done 100.000.000 times on Thirdgen.org. A bizillion L98 builds there. Go there for some tried n true recipes for you're build.

fbody91

You'll want a cam with a little more lsa then mine but here's my 91 firebird motor. My short block is different but for what you're doing I'd just get an eagle kit with cast crank, I beams, and hyper pistons. My cam is an comp xe274h flat tappet afr 195 eliminators with 75 cc Chambers. Performer rpm intake and 780 cfm carb. You'll probably want something like a stealth ram. Any way my compression is like 9.3 to one and the car has gone 11.42 @ 118mph
Just a good base line for what you want. Good heads and can go a long ways.