Klimaxx

iTrader: (1)

Wondering what a stock 5.3 can do with a cam (and spring) swap and longtubes, truck intake.. anyone running a similar combo? just wondering what to expect...any cam recommendations? it would/will going in a street driven 70 el camino with a 4l60...

PitchblackC3

iTrader: (3)

well, it would depend on
Which 5.3?
Which cam?

Klimaxx

iTrader: (1)

lm7.. .looking for numbers people have been getting with various cams, I dont have one picked out yet. Just trying to see what others have been getting.

garygnu

comp cam 54-408-11,54-455-11.

Klimaxx

iTrader: (1)

what springs would be good to run with those? I assume i will also need pushrods? ANd its in a 70 elcamino so i was looking more at your recommendations, what do you think of the 54-456-11...too big for a stock stall 4l60 and 323 rear gears?

sleepy88

iTrader: (5)

Im looking to do a similar build in an A body. Texas speed told me that they suggest212/218 cam that they sell. They say its about a 30hp gain.

garygnu

with the 408 cam use comp 918s,with the 455-456 use pac 1518s.you will need better push rods.the 456 cam would trade a little low end for more top end power.how much advance is in the 456 cam,4 or 5*?it mite work with a stock stall ,check the ls truck forum for more feed back.

Jeff Smith

iTrader: (44)

Klimaxx
what is the heads# you have in 5.3L? I want to get inform about the 5.3L engine/4l60e gain more hp??

Scoggin Dickey

iTrader: (34)

The smaller route:
http://sdparts.com/details/scoggin-d...er/cc54-st1-11

The better route:
http://sdparts.com/details/scoggin-d...-center/sd0067



I would change the pushrods and run PAC1218s with either cam. We can put them all together in a package to save you some money.

1nasty86

iTrader: (63)

i made 352/344 with a 224/228 .581/.588 112+2 (xer lobes) with shaved unported 243 heads, 1 3/4 longtubes, and an unported fast. this was also through an unlocked automatic and a 8.8

hellbents10

iTrader: (10)

224 cam with long tubes and a ls6 intake will usually net about 320-330rwhp. We recently did one with our hand ported 799's and our little 5.3 grind that made 387to the tires with a truck intake, through a stalled auto. Should break 400 with a good intake. Still had stock truck accessories and balancer.