Carbureted LSX forum - lq4/ls3 heads g6x3 cam.holley 750dp hp good enough??
10-17-2011, 05:27 PM
Sup fellas im doing a swap soon and need some help with a couple things first of ill start with the set up
ls3 heads .30 milled what should my cc be??
holley 750 hp is this good enough?? Or should i get a 850hp
High valume oil pump
Ls2 chain and hd sprokets
Thats what i have so far except intake
Things i need to get
675. Valve springs
Vic jr intake
Arp rod bolts what u guys think??
Arp head bolts
fuelp pump and filter's i need help with this
i need part number for auto meter oil and water sending unit ,fitting's to lsx block.
Thats as far i come with the built,i know im gonna need to flycut the piston's for insurance reasons.Any help with what im missing or should do would be appreciated.old school rocks!!!
10-18-2011, 11:31 AM
I think everything you listed sounds good. I don't know about the high volume oil pump though. I think most stick with ported stock or high pressure/stock volume pumps...but I'm not too up on that stuff.
10-18-2011, 04:53 PM
speedway motors have oil and water fittings
10-18-2011, 08:13 PM
Thanks.i hope to have all this put together and in the car by late next month then ill have pics.also suspension upgrades will be done.
10-18-2011, 10:38 PM
What fuel pump and filters should i run??
10-19-2011, 07:08 AM
following this, cause im doing this swap into my 70 camaro. With that cam in a stock ls3 the PTV is very close, might want to check if if milling the heads. im fly cutting my pistons, or might order new pistons for my build, doing a stock ls2 bottom end.
but the lq4 pistons might leave u enough room, not sure tho
10-20-2011, 11:48 AM
Any other help??
10-21-2011, 12:54 AM
I'm pretty much doing the same build. I plan on using the street/strip Aeromotive pump and filter. I've ran it on 2 previous cars and it's never given me a problem with either set up. One car I ran it on was 650hp n/a. Also ran it with the 100micron filter.
Don't waist your money on high $ regulators, use the Holley 30$ ones. Me and many people I know have for years without issue.
ARP rod bolts and heads studs are a great choice too. Escpecially the rod bolts!
10-21-2011, 12:00 PM
Thanks for that input Mr. Bu
i was looking into the fuel next for my car
10-26-2011, 07:03 AM
Same build I'm doing right now. I bet you will have ptv issues. I'm bored .030 with l92 style forged pistons, I have valve reliefs for the ls3 heads where as you don't. I bet it hits.
10-26-2011, 05:20 PM
Lq4 has dished pistons. 7 cc actually, Dont know what the specs of the cam are and with the size of the valves in those heads ptv clearence should be checked but it will be much better then flat top pistons allow.
Im thinking you will have a low compression set up though
10-26-2011, 05:30 PM
not familiar with your cam but I'm running a Holley HP Street 750cfm (mechanical)...and it keeps my LY6 plenty wet.
10-27-2011, 12:06 PM
Heads are milled .30 so should be 10:5 or around there,ptv im gonna flycut the pistons for insurance reasons.as for the cam 24x/23x 64x/61x 111lsa from what i hear.but i have made my mind up and selling the 750dp hp not doing the carb thing anymore