lt1 cam help

[Phantom409]

Im in the middle of building a 396 lt1 with a 292XFI HR13 cam (292/300 duration, .584/.579 lift), AFR 227 heads, Edelbrock RPM Airgap intake manifold, and Compcams behive springs #26918-16, might run nos and at some point going to run an f series procharger, hoping to hit about 500 hp without the procharger

That is (in red) the Advertised Duration @ .006 lift also.
The duration @ .050 that you need to worry about is .242/.248 @ .050.

This is the SAME cam that is in Red's car that we used for her 383.
420 hp N/A with a 6-speed.

And the 227 heads are made to fit the LT4 intake ONLY!

And this would be a concern for me right here!
This is straight from AFR's site: http://www.airflowresearch.com/index.php?cPath=27_32

Standard rockers can be used but the intake rocker arm will be at a slight angle and the roller tip will not be perfectly centered on the valve tip.
Not recommended for street use, unless shaft mount rocker is used.

Hope you have some serious cash laying around because a shaft system is 1000 +.

[DETROITMUSCLE]

Is this a serious build? It sounds to me like just a bunch of name brand parts slapped together.

lol I brought that to his attention before, he didn't like it

[meissen]

made for LT4 heads but don't port match to LT4 gaskets?

[ba_ta_97]

expectations

i do alotta "street" racing and alot at the track and the car is also my daily driver. so with that said i know its damn near impossible to get a 11-12 second car while also keepin as a nice daily driver so im willing to sacrifice practibility a bit for more power. im running 373 posi, f1 racing clutch/flywheel (supposedly rated for 400-450 HP/Torque) bigger fuel pump i believe 225lph (gotta look in my room again) going to get a bigger oil pan and higher power oil pump. (want to run turbo or supercharger later on) and willing to rev my car up around 6.6-6.9rpm's i raced kid with heads lt4 hot cam kit exhaust ect. and was even with his back bumper by the 1/4 mile mark (he was a joke of a driver). but i was thinking long tube headers for less back pressure, and eventually port the heads when i have the available funds.... if you need more info just ask.

[ThreeHonks]

And the 227 heads are made to fit the LT4 intake ONLY!

They can be made to fit an LT1 intake. If you are using these heads, why would you even think about using a stock intake in the first place.

lol I brought that to his attention before, he didn't like it

oh well. Theres just a lot to learn and I dont want to see anyone wasting their money. I believe that his "setup" if thats what you wanted to call it lol would get run over by cam only LS1 cars without a doubt

[1BADAIR]

oh. I believe that his "setup" if thats what you wanted to call it lol would get run over by cam only LS1 cars without a doubt

well, cam only ls1's dooooo go 10.50's

[Phantom409]

They can be made to fit an LT1 intake. If you are using these heads, why would you even think about using a stock intake in the first place.

Yes they can but it won't be perfect because the runners are raised to match the LT4.

[ThreeHonks]

well, cam only ls1's dooooo go 10.50's

wellll i know that, im taking about the average cam only LS1 you see on the street. im just making the point that those heads need some major supporting mods to run them effectively.

BTW; with a heads/cam 396 with a procharger and nitrous, just like what was stated... there should be no problem running better than 10.50s'

[JoeliusZ28]

They can be made to fit an LT1 intake. If you are using these heads, why would you even think about using a stock intake in the first place.



oh well. Theres just a lot to learn and I dont want to see anyone wasting their money. I believe that his "setup" if thats what you wanted to call it lol would get run over by cam only LS1 cars without a doubt

[JoeliusZ28]

i do alotta "street" racing and alot at the track and the car is also my daily driver. so with that said i know its damn near impossible to get a 11-12 second car while also keepin as a nice daily driver so im willing to sacrifice practibility a bit for more power. im running 373 posi, f1 racing clutch/flywheel (supposedly rated for 400-450 HP/Torque) bigger fuel pump i believe 225lph (gotta look in my room again) going to get a bigger oil pan and higher power oil pump. (want to run turbo or supercharger later on) and willing to rev my car up around 6.6-6.9rpm's i raced kid with heads lt4 hot cam kit exhaust ect. and was even with his back bumper by the 1/4 mile mark (he was a joke of a driver). but i was thinking long tube headers for less back pressure, and eventually port the heads when i have the available funds.... if you need more info just ask.

LT headers, yes... get em.

6,900 RPM? do you have the bottom end to support that? ignition?

and you need to decide N/A or boost, or youre gonna have a dud now and later. in stock form you already have too much compression for any serious boost. bump the compression and cam up, or take the compression down and boost it with a cam designed for boost. one or the other.

[ThreeHonks]

What are you talking about Joel?!? you didnt know that all it takes to have a fast car is $10,000 and a phone call to summit!?

[JoeliusZ28]

[DETROITMUSCLE]

lol you guys crack me up, although $$$ is the sole determining factor in building a fast car, having some common sense and doing lots of research can save you lots of money and time doing it right the first go around.

[1BADAIR]

man if it only cost 10,000 to go fast then I would be winning promod races

[M_Juntti]

Is this a serious build? It sounds to me like just a bunch of name brand parts slapped together.

yes this is a serious build, like it or not. i have the money and its going to happen and is in the making