Curious: cam regrinding a stock 350 LT-5

[Sgreg]

I am interested in knowing if anyone with plenum, inj. housings and head porting mods has made mild modifications to the cams. This assumes a stock 350 cu. in. LT-5. Trying to determine if regrinding can enhance performance of a stock cube, ported motor or cam timing is a better way to proceed.. Jump in if you have experimented with cams without cubic inch changes.

[Polo-1]

that would be Pete

[Pete]

I have seen a gain of 20-25 RWHP
It showed on 2 different dynos and trap speed at 2 tracks.

Before regrinds i was making 440-449 RWHP 400-405 RWTQ (stock cams)
After regrinds i make 469-474 RWHP 395-400 RWTQ

Cam Specs
Intake .236 .425
Exhaust .220 .415

The above HP/TQ #'s are from lowest to highest

Let me also add i did not loose much if any power at low RPM they are withen 5 which i would consider none.
If you come to BG you'll be able to see,hear and feel throttle response on my Z and decide for yourself.
Idles nice at 850 not too cammy and drives like a stocker.

Pete

[ZZZZZR1]

Originally Posted by Pete

I have seen a gain of 20-25 RWHP
It showed on 2 different dynos and trap speed at 2 tracks.

Before regrinds i was making 440-449 RWHP 400-405 RWTQ (stock cams)
After regrinds i make 469-474 RWHP 395-400 RWTQ

Cam Specs
Intake .236 .425
Exhaust .220 .415

The above HP/TQ #'s are from lowest to highest

Let me also add i did not loose much if any power at low RPM they are withen 5 which i would consider none.
If you come to BG you'll be able to see,hear and feel throttle response on my Z and decide for yourself.
Idles nice at 850 not too cammy and drives like a stocker.

Pete

Pete,

You are da man!!!!!!!!!!


David

[Sgreg]

Originally Posted by Pete

I have seen a gain of 20-25 RWHP
It showed on 2 different dynos and trap speed at 2 tracks.

Before regrinds i was making 440-449 RWHP 400-405 RWTQ (stock cams)
After regrinds i make 469-474 RWHP 395-400 RWTQ

Cam Specs
Intake .236 .425
Exhaust .220 .415

The above HP/TQ #'s are from lowest to highest

Let me also add i did not loose much if any power at low RPM they are withen 5 which i would consider none.
If you come to BG you'll be able to see,hear and feel throttle response on my Z and decide for yourself.
Idles nice at 850 not too cammy and drives like a stocker.

Pete

PM sent Pete.

[DREAMZ]

Sounds great and I'll look for Pete at BG. How much are we talking and where is the source? Thanks!

[XfireZ51]

Originally Posted by Pete

I have seen a gain of 20-25 RWHP
It showed on 2 different dynos and trap speed at 2 tracks.

Before regrinds i was making 440-449 RWHP 400-405 RWTQ (stock cams)
After regrinds i make 469-474 RWHP 395-400 RWTQ

Cam Specs
Intake .236 .425
Exhaust .220 .415

The above HP/TQ #'s are from lowest to highest

Let me also add i did not loose much if any power at low RPM they are withen 5 which i would consider none.
If you come to BG you'll be able to see,hear and feel throttle response on my Z and decide for yourself.
Idles nice at 850 not too cammy and drives like a stocker.

Pete

Pete,

Was the original 440hp just your basic top end and head work? Were the stock cams degreed differently than spec?

[Pete]

Originally Posted by XfireZ51

Pete,

Was the original 440hp just your basic top end and head work? Were the stock cams degreed differently than spec?

Yes,ported heads/intake,headers,B&B Xpipe,no cats
440 is same as 449 no change i had it on 2 different dynos and as always second pull makes less then first.

They are from lowest to highest.

Cams were not stock timing.

Pete

P.S.
The people that do the cams are a bit pricey but i know they work if anybody has them done cheaper let me know how they work i'm done with cam R&D it starts to get expansive.
Regrind $300 each

[XfireZ51]

Originally Posted by Pete

Yes,ported heads/intake,headers,B&B Xpipe,no cats
440 is same as 449 no change i had it on 2 different dynos and as always second pull makes less then first.

They are from lowest to highest.

Cams were not stock timing.

Pete

P.S.
The people that do the cams are a bit pricey but i know they work if anybody has them done cheaper let me know how they work i'm done with cam R&D it starts to get expansive.
Regrind $300 each

So should I expect 50rwhp from doing the heads after having ported the top end?