looking for 3500 cam regrind

[SappySE107]

Dave, what ICL and what are your .050 durations?

[ForcedFirebird]

mine was custom.. back before Ben was selling his custom grinds

I got my top end gasket kit from gmpartsdirect.com P/N 12594816
for $139.63

They're a little more now. Mine was $159 and change, I could look it up to be exact.

[merlot566jka]

75.01 from my dealership, without head gaskets. this is at my price as a service advisor. i picked the gaskets individually...what all comes in the kit?

[Superdave]

Dave, what ICL and what are your .050 durations?

[Superdave]

75.01 from my dealership, without head gaskets. this is at my price as a service advisor. i picked the gaskets individually...what all comes in the kit?

2 headgaskets, both LIM gaskets, 2 valley gaskets, UIM metal gaskets, valve cover gaskets, valve seals and something else that i'm forgetting...

[ForcedFirebird]

2 headgaskets, both LIM gaskets, 2 valley gaskets, UIM metal gaskets, valve cover gaskets, valve seals and something else that i'm forgetting...

http://www.60degreev6.com/showpost.p...4&postcount=18

[merlot566jka]

eh, i excluded head gaskets, valve seals and inadvertently left of valve cover gaskets and valley gaskets....

dave, where did you get injectors from? what car? and can i run the newer gm injectors on the 7730 ecm ( i know nothing on the newer style injectors)

[Superdave]

eh, i excluded head gaskets, valve seals and inadvertently left of valve cover gaskets and valley gaskets....

dave, where did you get injectors from? what car? and can i run the newer gm injectors on the 7730 ecm ( i know nothing on the newer style injectors)

mine are from a Syclone/Typhoon turbo 4.3.. they're 32# @ 43PSI and 36# @ 55PSI


Yes, you can run the newer injectors. If you can find a set from a L67 (3800 S/C) they are 36#@ 55PSI.. I'd run the older 43PSI FPR so they'll be around 32#. It's an easy change if you start to max them out.

you'll also need to snag a fuel rail from a 3100 or 3400.

[merlot566jka]

got the fuel rail.

the newer 3500 injectors are rated at 55psi, and my 24lb injectors are rated at 38psi
with that said, what psi is the 2003 fuel rails' regulator?

[merlot566jka]

so the 1386 sounds like the winner. with the .040 head gaskets.

what size injectors does the 3500 have, and what will i need?

oops...i meant 1617. can i get more lift with your grinds ben? i was hoping for a little more lift, but that duration, icl and overlap seems good all together. wanting about .525 intake and .535 exhaust

[Superdave]

got the fuel rail.

the newer 3500 injectors are rated at 55psi, and my 24lb injectors are rated at 38psi
with that said, what psi is the 2003 fuel rails' regulator?

Should be 55 PSI.

[SappySE107]

I cannot change any lobe specs. If you see another lobe (intake or exhaust on any other cam) with the lift and duration you want, then you can use it. .020 isn't a huge difference really.

[SappySE107]

The 1386 with 114 LSA and 109 ICL looks like it might work out better for you dave, idle wise and power wise. If you want a top end power cam, thats one of the best I have seen so far.

1617 isn't as powerful but with 113 ICL and 114 LSA, it wakes up a little bit more than the spec on the grind, and idle should be pretty good as well with 44 degrees overlap.

[merlot566jka]

damnit. basicly its a case of niether is better than the other....

ive got a few days before i order the cam, i just need a way to know which is better for my setup.

[Superdave]

The 1386 with 114 LSA and 109 ICL looks like it might work out better for you dave, idle wise and power wise. If you want a top end power cam, thats one of the best I have seen so far.

1617 isn't as powerful but with 113 ICL and 114 LSA, it wakes up a little bit more than the spec on the grind, and idle should be pretty good as well with 44 degrees overlap.

I don't need a new cam


I'm confused.. the 1386 has a 106ICL and 110 LSA.. the 1617 has a 107 ICL and 111 LSA.


Personally if you are going for all out power then the 1386 should scream, idle like hell and work out very well with the ported heads and headers.

However if you plan on driving it every day the 1280 or 1617 will be a better choice. The difference in overall power is hardly noticable. It's still going to lope with either cam.. If you really want it to lope then just advance the spark timing at idle to around 30 degrees..