Vortec Head Modifications / 89 Pontiac Transam GTA - Vortec 350 TPI / By grumpyvette » october 7th, 2008, 1:48 pm.. Again, the vortec heads do require slight modifications should you choose to run a set of 1.6:1. I hear these vortec heads are suppose to be awesome for perfromance use. Made easy with flow bench results! I understand their limitations in terms of valve lift in stock come join the discussion about restorations, builds, performance, modifications, classifieds. Installed vortec heads on a standard 1986 reman 5.7 motor with roller lifters.
Again, the vortec heads do require slight modifications should you choose to run a set of 1.6:1. Vortec heads are easily identified, as they only have 4 intake manifold bolts per side that are straight up come join the discussion about restoration, builds, performance, modifications, classifieds. Adding a performance cam to your vortec 350 is always a great idea. I understand their limitations in terms of valve lift in stock come join the discussion about restorations, builds, performance, modifications, classifieds. These vortec heads are designed in a way to increase the lifting of the camshafts to open the valves.
Swirl port SBC heads from www.crankshaftcoalition.com They are also the fast burn chambers, just adapted for the 305s small bore. Scitoo replacement for head gasket w/bolts kit fit for gmc sonma savana for isuzu bravada for cheverolet 4.3l v6 ohv. Adding a performance cam to your vortec 350 is always a great idea. I know you need a new intake, but do you also need a computer chip. Skip to main search results. Since they used cams with lift in excess of the modifications you need to have performed on the vortec heads are: Vortec heads have a different intake bolt angle on some bolt locations. I dont see how a vortec 350 can dyno at 405 rwhp without additional fuel over the 19 pph injectors.
I would like to swap a set on the boat as well as getting an updated vortec style intake manifold to match.
Take 2 vortec head modification. All build up with vortec heads must have had the upgraded springs ect. My manual only goes up to 1996. Vortec cylinder head increases the efficiency of the camshafts while working. I am leaning toward vortec heads. I hear these vortec heads are suppose to be awesome for perfromance use. Adding a performance cam to your vortec 350 is always a great idea. Vortec heads have a different intake bolt angle on some bolt locations. That being said, i have a couple of sets of vortec 5.7 heads. They are also the fast burn chambers, just adapted for the 305s small bore. Not upgrading your valve springs is a bad idea. Machining vortec heads, and other heads. Just click the edit tab at the top of this page, or click one of the edit links to the right of an article section.
I thought the vortec heads are designed off of the lt1 just made for standard sbc. Installed vortec heads on a standard 1986 reman 5.7 motor with roller lifters. Regardless of the engine the recommended torque sequence is to re: Vortec heads (and most others) like straight stemmed valves. Vortec heads also use a different intake bolt angle than traditional sbc heads and, as mentioned previously, camshaft lift needs to be kept on the low side, unless other modifications are made.
Porting cylinder heads from www.crankshaftcoalition.com I understand their limitations in terms of valve lift in stock come join the discussion about restorations, builds, performance, modifications, classifieds. Vortec heads also use a different intake bolt angle than traditional sbc heads and, as mentioned previously, camshaft lift needs to be kept on the low side, unless other modifications are made. The chevy vortec head is an excellent choice for a variety of performance and race applications. Again, the vortec heads do require slight modifications should you choose to run a set of 1.6:1. We go and take them to the machine shop to get them modified for his engine build. Just click the edit tab at the top of this page, or click one of the edit links to the right of an article section. The only modifications will be the jegs intake manifold, holley tbi adapter, and vortec fuel pump. Has anyone converted there late model chevy from the tbi heads to the vortec heads?
We measured our stock iron heads that just won't do.
By grumpyvette » october 7th, 2008, 1:48 pm. These vortec heads are designed in a way to increase the lifting of the camshafts to open the valves. Vortec heads (and most others) like straight stemmed valves. That being said, i have a couple of sets of vortec 5.7 heads. The only difference is the water jacket revision so these heads could be used on. I know you need a new intake, but do you also need a computer chip. I thought the vortec heads are designed off of the lt1 just made for standard sbc. Regardless of the engine the recommended torque sequence is to re: I hear these vortec heads are suppose to be awesome for perfromance use. Vortec heads have a different intake bolt angle on some bolt locations. Installed vortec heads on a standard 1986 reman 5.7 motor with roller lifters. All build up with vortec heads must have had the upgraded springs ect. Just get out your tools and make some modifications.
I would like to swap a set on the boat as well as getting an updated vortec style intake manifold to match. Not upgrading your valve springs is a bad idea. The intake manifold and injectors cant support it. By grumpyvette » october 7th, 2008, 1:48 pm. The chevy vortec head is an excellent choice for a variety of performance and race applications.
Porting cylinder heads from www.crankshaftcoalition.com My vortec 350 had ported heads with 2.05/1.6 valves, a healthy roller cam, headers and a single plane intake. Vortec heads also use a different intake bolt angle than traditional sbc heads and, as mentioned previously, camshaft lift needs to be kept on the low side, unless other modifications are made. All build up with vortec heads must have had the upgraded springs ect. Vortec heads have a different intake bolt angle on some bolt locations. I am leaning toward vortec heads. We measured our stock iron heads that just won't do. Just click the edit tab at the top of this page, or click one of the edit links to the right of an article section. We go and take them to the machine shop to get them modified for his engine build.
I dont see how a vortec 350 can dyno at 405 rwhp without additional fuel over the 19 pph injectors.
By grumpyvette » october 7th, 2008, 1:48 pm. Since they used cams with lift in excess of the modifications you need to have performed on the vortec heads are: The 059 casting 305 vortec heads are the best factory gm 305 casting available. I dont see how a vortec 350 can dyno at 405 rwhp without additional fuel over the 19 pph injectors. Mucho goes and get another set of vortec 350 heads. We have the new chevy mexican vortec heads available with various forms of modifications and can. Undercut valves create unwanted turbulence and a decrease in intake charge velocity (they add volume (slowing the gases) to the overall port volume just behind the valve. I am leaning toward vortec heads. Adding a performance cam to your vortec 350 is always a great idea. Looking back, i'm now thinking that perhaps i should have pulled the heads while i was in there, but i wanted to get it back on the road and use it. I thought the vortec heads are designed off of the lt1 just made for standard sbc. We measured our stock iron heads that just won't do. I hear these vortec heads are suppose to be awesome for perfromance use.
