A few PR members have been edging me to get some pics of the truck with the new motor on here so here you go guys

it turned 15.58 with the old 327
Best reaction time was 0.028 on a set of grand am radials.





Dont know what it wll do with the new motor, gotta wait till next season to find out

Dont bug my about the exaust manifolds lol, they are corvette mani's and are getting swapped out asap.

How much did you HP increase after you added flames and stickers?

The engine looks nice but the body looks like barf.

Lol you gotta remember, its a race car.

I have to question your intake manifold/4x2. It's a great combination for horsepower.... if your engine can even manage a 600+ hp output. But even completely gutted on the scales I'm going to assume at 3,200 weight with a quarter tank of fuel or so minus driver? I think your times might increase if you went with a good ol' fashion single plane with a 950 or so CFM carb. I'd really like to suggest a fuel injected set-up with a 1050 cfm throttle body and injectors matched to yer output.

There is something seriously wrong with your set up is all I can tell. At simular altitude as you (you were running at the Portland drag strip?) my Jeep with a 318 can probably take you or give you one hell of a run for your money... stock.

Here are my suggestions:

Get a spacer for that dang flex-a-lite fan and a radiator shroud ... or get an electric fan - you might get upwards of 6 more real world hp to your rear wheels.

LONG 4 into 1s, or 4-2-1 headers if you can find a set that'll fit. Also don't go for a large ID header, NASCAR racers don't even go as large as most speed shops offer. I'm assuming with that vintage you have a dual exhaust so do you already have an X-pipe added?

Moderate cam - don't go to far with it - that vehicle needs gobs of torque IMHO to get a good 60f time and to carry it the whole way.

Forced induction - roots style.


Nice truck all the same. Ohh, ditch the dog dishes and you might get another .02 shaved off.

Listen to the Mopar Weenie pretending to know Chivy's...

Just for the record..Fuel injection you mentioned probably costs more than what it takes to build an old school 400+HP small block!

Dual quads can do very well ...better than a single 4 barrel if the rest of his motor has the right hardware tuned for max power from 4000 to 7000RPM

He didn't mention heads cam or gears...

If he has some aftermarket heads (2.02x1.60) that flow well, a 500+ lift 300 degree duration cam...he could easily coax 500HP out of a 383.

As long as he has a 4.11 or lower gear, 3500RPM stall converter or Manual Transmision under the truck he is probably looking at high 11's to mid 12's

However...

The worst possible combo would be stock small valve heads (1.94x1.50) a realy huge 550 lift 320 duration cam (Or a near stock cam) combine that with a stock auto /3.08 gears and even your Heep Grandma Cherokee could make it look silly.

I am sure the combo he has is somewhere in between and will run mid to low 13's with some carefull tuning.

At least he has vaccum secondary carbs on her, a pair of holley double pumpers would probably make it a real soggy dog!

The other factor is Dual Quads look (Chicks dig em') and sound like nothing else...no whiney supercharger..just 8 Barrels screaming for AIR!!!

Love the silver flame over primer Ace, and keep the dog dish hubcaps too!

Why not justt put Fast Burn gm crate motor heads on that small block and he could easily have 385hp/385tq?

Quote: Originally Posted by $SOLID$ Necro Just for the record..Fuel injection you mentioned probably costs more than what it takes to build an old school 400+HP small block! Dual quads can do very well ...better than a single 4 barrel if the rest of his motor has the right hardware tuned for max power from 4000 to 7000RPM He didn't mention heads cam or gears... If he has some aftermarket heads (2.02x1.60) that flow well, a 500+ lift 300 degree duration cam...he could easily coax 500HP out of a 383. As long as he has a 4.11 or lower gear, 3500RPM stall converter or Manual Transmision under the truck he is probably looking at high 11's to mid 12's However... The worst possible combo would be stock small valve heads (1.94x1.50) a realy huge 550 lift 320 duration cam (Or a near stock cam) combine that with a stock auto /3.08 gears and even your Heep Grandma Cherokee could make it look silly. I am sure the combo he has is somewhere in between and will run mid to low 13's with some carefull tuning. At least he has vaccum secondary carbs on her, a pair of holley double pumpers would probably make it a real soggy dog! The other factor is Dual Quads look (Chicks dig em') and sound like nothing else...no whiney supercharger..just 8 Barrels screaming for AIR!!! Love the silver flame over primer Ace, and keep the dog dish hubcaps too!

Fuel injection can handle big cams better for driving it to the track IMO.... also I don't know about you, I like to hit the skinny pedal, not sit around with jets X 2. Also if you can find an engine builder that will build a 400 hp engine that builds usable power acrost the entire rpm range for less than 1,500 for a MPI set up, please tell me. I know Shivy parts cost less, but the parts to make a 383 normally cost A LOT more than that once you factor in the 350 core engine and 400 crank once balanced and blueprinted.

He has a 327 not a 383, if he stays with the 327 base, he needs to coax all the grunt he can for that much weight.

Aftermarket heads... big investiment but yes big advantage since Shivy heads don't flow that well from the factory normally.

I don't think his entire engine assembly has been balanced, and top end hasn't been reworked/designed for the 4-7k rpm range, probably 6k before his current set up takes a nose dive.

Also Necro I think your estimates are a little off - remember it's a truck. He's going to have problems with traction even with a detriot in the rear for the high rpm launchs you're figuring. He only has probably 35-40% of total vehicle weight on the rear wheels. Also yes, gears should be looked into, just I have two axles and never give that topic much though.

Shivy, Ford, Chrysler, it's just a bunch of dimensions and flow.

Ok just to clarify some things. Its a 355 chevy crate motor with 10/10.25-1 comp. Pete jackson gear drive holding the botton end together nicely (dont argue with me, it DOES help) And for the TOP end we have a set of World Merlin Sportsman II heads with angel spark plugs and 500 lift springs all on 2.02/1.60 stainless steel and hardened Valves sitting on titanium seats, pushed by a set of magnum pushrods and a set of 1.52 ratio comp cams magnum roller tip rockers, feeding from a comp cams XE274h cam. All this is fed threw an Sm465 rock crusher transmission, Slip is provided from a Centerforce 2, 12in disk, fed to a positrack 12 bolt rearend. Power puts down from a set of Grand am 265/65/r15 (11 inch wide) tires. Traction supplements have been made to the read end. Im not sure about the rear gear yet as I havnt torn that apart yet.

*edit* "flow" comes from a set of Carter AFB 500cfm carbs sittin on a weiand tunnel ram (rpm range 2800 - infinity) And she does lug out when I ask it to.