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hey guys,
i can soon aqcuire a set of Z06 heads and Z06 cam brand new for about 800 dollars through a friend...
i have a 99 ECSB silverado with the 5.3...
how much of a performance increase would this add???
i currently have just the K&N intake and BORLA exhaust...
also is this a good combo to put on my engine for a decent daily driver HP upgrade????
thanks guys...
I think I would shop around before I bought the heads and cam from him for $800. You can buy a set of stage two PP heads for $1195 they flow 300 cfm at 600 lift. Just my my 2 cents worth. If you want at set of good heads I have aset of ported/polished 5.7LS1 heads with 2.02 intake and 1.57 exhaust valves. I just got them back from the machine shop I had them milled .005" to straiten them back up. I will sell them plus a LS1 cam for $450.Quote:
Originally posted by 99SilveradoSpeed@Nov 16 2005, 05:34 PM
hey guys,
i can soon aqcuire a set of Z06 heads and Z06 cam brand new for about 800 dollars through a friend...
i have a 99 ECSB silverado with the 5.3...
how much of a performance increase would this add???
i currently have just the K&N intake and BORLA exhaust...
also is this a good combo to put on my engine for a decent daily driver HP upgrade????
thanks guys...
Just let me know if your interested.
lator
Justin
hey sierra,
thanks for the quick reply..hmm..would your heads plus the LS1 cam render a similar performance gain as the Z06 heads and cam would on my engine?? what if i did your heads and a Z06 cam??
let me know...
i am interested..
Yeah my heads plus a z06 cam would work beter. A LS1 cam is not much bigger than a 4.8/5.3 cam but I bet my heads would make more power than a stock LS6 head. I have them in NC and im in Ga know but If your interested I could pick them up this weekend. Im running a twin turbo setup so I went with the 6.0 heads to lower my compression alittle bit.Quote:
Originally posted by 99SilveradoSpeed@Nov 16 2005, 05:51 PM
hey sierra,
thanks for the quick reply..hmm..would your heads plus the LS1 cam render a similar performance gain as the Z06 heads and cam would on my engine?? what if i did your heads and a Z06 cam??
let me know...
i am interested..
hey sierra,
are these heads assembled or bare castings???
how much for just the heads? i think i am going with the LS6 cam but your heads sound good to me as long as they are just a bolt on thing..
HP increase???
TQ increase???
would i need a tune from allen or would it be alright for a short time with the stock PCM?
You could run these with your stock tune but would be alot beter off with a good tune from allen. Im not sure on the hp/tq increase but I would geuss with the z06 cam and these heads a good 40hp increase is possible. If you just want the heads I will sell them for $400 plus shipping. The heads dont have any valve springs but I can include some springs that came off the 6.0 heads if you want them.Quote:
Originally posted by 99SilveradoSpeed@Nov 16 2005, 08:11 PM
hey sierra,
are these heads assembled or bare castings???
how much for just the heads? i think i am going with the LS6 cam but your heads sound good to me as long as they are just a bolt on thing..
HP increase???
TQ increase???
would i need a tune from allen or would it be alright for a short time with the stock PCM?
hmm...well the Z06 cam im getting include the springs and retainers..etc..so i wouldnt need them...i only need the heads and the valves...
would you do 400 shipped to me?? zip code 11968...let me know
I will do $450 shipped. I know it will cost at least $60-$70 to ship them beacuse I shipped a set of speakers/boxes last week and it cost $83 to ship them to mi. :eek: If you want to get them here is my address.Quote:
Originally posted by 99SilveradoSpeed@Nov 16 2005, 10:00 PM
hmm...well the Z06 cam im getting include the springs and retainers..etc..so i wouldnt need them...i only need the heads and the valves...
would you do 400 shipped to me?? zip code 11968...let me know
Justin Smith
2712 ValleyGreen Dr.
Gainesville GA, 30504
I will pick them up this weekend and ship them out as soon as I get the check.
Thanks
Justin
I shipped a set of heads through DHL for $23.00 FWIW.
I wish there was a local DHL. THe store I us is a local UPS store and there high. I went to ups website and put all the infomation in for the speakers, weight # of boxes ect... It come up with $45 but when I went there they charged me $83. That also included them boxing/packing it for me so That was like $15 so really the shipping was only $68 but I think that was still high :bs: Oh well its done.Quote:
Originally posted by RedHeartbeat@Nov 16 2005, 10:39 PM
I shipped a set of heads through DHL for $23.00 FWIW.
I set up an account and DHL comes by an picks mine up.
:whack: Really man I need to do that. Ive been fighting with UPS for the last month on a cam of mine they lost in the mail. I talked to the guy at the store the other day and they said UPS is sending me a check but my luck they will lose the check in the mail to. :rofl:Quote:
Originally posted by RedHeartbeat@Nov 16 2005, 10:57 PM
I set up an account and DHL comes by an picked mine up.
hmm..450 sounds like a good deal..i need a week to get the money together though..get paid every 2 weeks and bills are due next week...so i will keep you posted...my email is jeepkilla07@aol.com...will make it easier for contacting each other
Yeah my email is Yellowsierra02@yahoo.com so whe n you are ready just let me know.Quote:
Originally posted by 99SilveradoSpeed@Nov 17 2005, 09:39 AM
hmm..450 sounds like a good deal..i need a week to get the money together though..get paid every 2 weeks and bills are due next week...so i will keep you posted...my email is jeepkilla07@aol.com...will make it easier for contacting each other
Thanks
Justin
If I was you I would reconsider the Z06 heads on a 5.3. The Z06 heads are the same as LQ9 heads but with smaller combustion chambers. I have a book thats all about gen III engines and they put a set of Z06 heads on a 5.3 and lost HP and torque. They recomended the z06 heads on a 5.3 if it had forced induction.Quote:
Originally posted by 99SilveradoSpeed@Nov 16 2005, 05:34 PM
hey guys,
i can soon aqcuire a set of Z06 heads and Z06 cam brand new for about 800 dollars through a friend...
i have a 99 ECSB silverado with the 5.3...
how much of a performance increase would this add???
i currently have just the K&N intake and BORLA exhaust...
also is this a good combo to put on my engine for a decent daily driver HP upgrade????
thanks guys...
I dont see how you could lose power from a set of ported polished 5.7 heads 2.02/1.57 compaired to a set of stock 5.3 heads? :whack: If this is true Im going to cancel my order for my AFR heads. LOL JKQuote:
Originally posted by gearheadnate+Nov 17 2005, 09:09 PM--><div class='quotetop'>QUOTE(gearheadnate @ Nov 17 2005, 09:09 PM)</div>Quote:
<!--QuoteBegin-99SilveradoSpeed
If I was you I would reconsider the Z06 heads on a 5.3. The Z06 heads are the same as LQ9 heads but with smaller combustion chambers. I have a book thats all about gen III engines and they put a set of Z06 heads on a 5.3 and lost HP and torque. They recomended the z06 heads on a 5.3 if it had forced induction. [/b]Quote:
@Nov 16 2005, 05:34 PM
hey guys,
i can soon aqcuire a set of Z06 heads and Z06 cam brand new for about 800 dollars through a friend...
i have a 99 ECSB silverado with the 5.3...
how much of a performance increase would this add???
i currently have just the K&N intake and BORLA exhaust...
also is this a good combo to put on my engine for a decent daily driver HP upgrade????
thanks guys...
The 2" and larger valve is too large for the 4.8/5.3... you induce valve shrouding as the bore is only 3.78" this decreases velocity and hurts power. AFRs for a 302 Ford only have a 1.9" intake valve that motor has a 4" BORE! Just stick with 5.3 heads on a 5.3.
If you were planing to drop ~$1000 for heads, just pick up a 6.0 motor... better heads already and more cubes.