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Personally I would change the LS7 lifters for either Johnson or Comp Cams lifters.
Also will the cam have a 32% fuel lobe on it?
Who are you having do the head port job? Are they doing a valve job also? If you are putting these heads on an LT1 remember you will need the intake manifold adapter plates.
Also while you are in there, do a stage 3 clutch. If not, you'll be doing it right after you get the car running with all that power.. lol
Personally I would change the LS7 lifters for either Johnson or Comp Cams lifters.
Also will the cam have a 32% fuel lobe on it?
Who are you having do the head port job? Are they doing a valve job also? If you are putting these heads on an LT1 remember you will need the intake manifold adapter plates.
Also while you are in there, do a stage 3 clutch. If not, you'll be doing it right after you get the car running with all that power.. lol
Ant
The ultra rods already comes with a good set of arp rod bolts, and i I already got the ls7 lifters and I remember that they work really good, head port was done by land speed development and I already have a procharger manifold which will have the lt4 bolt patter with the lt1 bolt pattern, also i just bought a mantic triple clutch
The ultra rods already comes with a good set of arp rod bolts, and i I already got the ls7 lifters and I remember that they work really good, head port was done by land speed development and I already have a procharger manifold which will have the lt4 bolt patter with the lt1 bolt pattern, also i just bought a mantic triple clutch
Im building my motor and would like to check if im missing anything that I should add.
Its going to be stock cubis motor with stock crank
1-arp main and head studs
2-main and rod clevite coated bearings
3-callies ulta h beam rods
4- wiseco pistons 4.075 and 10.5 compression
5-btr cam
6-billet barbell
7-trunnion upgrade
8-ported lt4 heads
9-btr 660 springs
10-gm lt1 head gasket
11-gm exhaust gasket
12-btr pushrods
13-c7r timing chain
14-phase lock 0 degree (deletes vvt)
15-ls7 lifters
16-arp flywheel bolts
Is there anything else that i need to add since Im already there? Its will be for a 10 rib ysi setup and maybe add nitrous later
why 4.075" pistons instead of 4.070?. I went with 4.070 to remove as little stock as possible from the factory sleeves. The extra .005" could be a concern down the road with boost and nitrous.
Its not really worth the cost for what power you pick up. LT1/4 heads flow pretty badass. I can add another pound of boost and make more than having the heads ported. we just made 818 hp and 685tq on 12 psi with stock heads.
Originally Posted by FYREANT
Why not?
Last edited by Billy@MTI; Dec 5, 2017 at 03:17 PM.
Its not really worth the cost for what power you pick up. LT1/4 heads flow pretty badass. I can add another pound of boost and make more than having the heads ported. we just made 818 hp and 685tq on 12 psi with stock heads.
I suppose. I don't know that I agree that the LT1 heads flow good. LS3 heads were better that these things! I ported my LT1 heads and I'm a high HP LT1. I'm sire it helped, just not sure exactly how much since I did the whole build at the same time. The bigger and smoother the air flow path is, the more air you can get into the chamber and the less boost it takes to do it.
Wasn’t expecting that, i have everything new and ready except the block, idk how did that happen but he said its might be a head lift! The car never made more than 865 on the old setup and it had a head studs!
Wasn’t expecting that, i have everything new and ready except the block, idk how did that happen but he said its might be a head lift! The car never made more than 865 on the old setup and it had a head studs!