yeah i knew all that but what i meant is i dont know what all might have been done to the intake and heads if there was anything other then P&P

 

Sorry I must have miss under stood him when I talked to him a few weeks ago. I checked the E-mail I got from him and yes those are the ocrrect number.

Again Sorry for being a tenth off.

I have a pretty good Idea what has been done to his intake

 

OK Ellis, spill the beans, what did he do to the intake.

Michael

 

Could we possibly fit a Kinsler Fuel Injection type setup? I doubt it with our cowls, but we might be able to use shorter trumpets....

 

Has anyone on this list have any experience with sheet metal intakes? I'm thinking this my be my next major move mostly to get an air gap to cut down on heat soak.

 

i think a cost effective way to achieve this is achieve is a victor jr converted. alot cheaper than a sheet metal intake.

 

A Vic Jr is not the right way to go there. Bad port sizing for most of the motors that would run them, they are nearly impossible to convert to the LT1 bolt pattern on the center bolts and a Super Vic far exceeds them in runner length and keeping the runners equal in length. A single plane is a bunch cheaper than a Sheetmetal intake.

Bret

 

I'm thinking more along the lines of highest hp still using the stock computer and aftermarket stock appearing Tb.

Again in my experience, heat soak on LTx engines is a real issue. I've seen sheet metal intakes on Ltx engines but have no clue as to the hp gains or if they’re OBDII compatible so it will pass emissions. (Street racing is still my favorite….. Ya I know, shame, shame, shame on me)

More interested in making power than going cheap.

 

ooops i meant to say super vic jr, i guess not everyone can read my mind

sorry!

denny,

i will let you know come spring time how well the sheet metal intake works

 

I don't think there's such an animal as a Super Vic Jr.

Super Victor or Victor Jr., that's it. Then about 5 million different versions of each to satisfy just about any application using any kinda head you can think of for a SBC.

 

definitly doable. not sure what rwhp i was making, but at 3500lbs i ran a 10.46 @ 128 NA with an LT4 intake that just had the throttle blade openings enlarged, and i just ported the runners a little to match the heads (light ported LT4s). with tuning im sure it would have gone much faster

 

Is anyone makin 475rwhp or more through Hydraulic roller. I know alot are solid... but are any doin it hydraulic? Thanks

 

This is where I get to say......... give me a few weeks and I'll tell ya.

I seriously doubt I can as I'm trying to keep it street drivable but that's why I'm looking into Hogan intakes and such.

 

Yes, I know of a 355 LT4 that will make close to 500 at the rear wheels using a mild hydraulic, AFR 215RR heads and a custom CFE intake. This one is much more than a pile of parts though... and of course, may be irrelevent when you factor in the intake.

Can be done and made streetable... but not cheaply unless you want to throw a lot of cam at it. Always a trade off...

-Mindgame

 

Is it possible? Sure. Is it likely? Not unless you know more then 99% of people on this board and/or have more money to spend on it then most of us. Of course, why not take the easy way out and go mechanical roller?

Some quick numbers to play with:
To be safe 475rwhp = ~570bhp
At 100% VE a 350 will have to be spinning about 7500rpm to do it (figure, for most people’s setups this could be lightly optimistic and you might have to turn a few hundred more rpm)
You’ll need over 275cfm intake port flow at at least 20% under your peak lift
You’ll need a cam that will give you peak hp around 7500rpm and a valve train that will be reliable to 8K

At that point, to get a HR setup to live you’re talking about using every trick in the book, light valves, retainers…, rev kit, trick valve springs… you’re at the point that it will be difficult to do it without heads that will require offset rockers…

All of this gets much easier/cheaper if you just suck it up and live with adjusting valve lash once in a while. OTOH, you won’t save money on the short block unless you spend the $$$ for a bigger displacement so you don’t have to wind it up as tight, but even something like a 396 will want >6750rpm to get into this range.