Which heads with a g5x3 cam????
Which heads with a g5x3 cam???? I'm a noob and need your help I have been a member for years and I keep reading all theses posts about cam and head combos and im confused. My car is a 02 with ls6 intake a g5x3 cam with all the boltons and a moser 12 bolt with 3.73 gear and it put down close to 400hp on the dyno which I'm not to happy with. I want to be over 450 hp with a 92 fast intake and 92 TB and heads. I DO NOT WANT TO FLY CUT MY PISTONS so I'm looking for heads that will work with the g5x3 cam. I keep hearing about 243's which I would get ported and polished and got quated $800 to have that done plus buying the heads for $400 plus the new springs and rockers that's like almost $1800 which the guy doing the work will have before flow sheets and after he works for a repatible shop that he will do on the side and he guarantees they will out flow the competitor. Or I can due the Texas speed heads 215 I believe are 1300 plus springs or I can due there ls6 heads which are $2395 with springs or AFR heads which are $2500. All I want is not to fly cut the pistons and be happy putting down over 450 hp after the tune. I ask which heads are best for this g5x3 cam???? Any help would be greatly appreciated. Thanks
thank you for that info. Does anyone have experience with Texas speed heads the stage ls6 heads $1495 or the prc 215 head $2399???? How much power have u increased with these heads?
I'm a noob and need your help I have been a member for years and I keep reading all theses posts about cam and head combos and im confused. My car is a 02 with ls6 intake a g5x3 cam with all the boltons and a moser 12 bolt with 3.73 gear and it put down close to 400hp on the dyno which I'm not to happy with.
If you haven't read it yet, The "recipe" to making 500 rwhp with just heads and cam explains a lot of what is required, including the exhaust.
Best of luck!
I ran AFR 205 heads on my ls1 with the x3 cam and made 463hp 414tq with a non ported fast/no ewp 12bolt w/4.11's. It was on a mustang dyno and i ran 11.1 123mph at 3,700lbs with me in it.
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While I am sure that it is possible to get similar results from ported 243 heads done by the right guy(s), we have no idea who your reputable vendor is. And as long as he operates the flow bench, he can of course 'guaranty' that his heads outflow any competitor. Unless you have access to others with solid results from his work, it would be hard to trust his opinion of his work - i.e. sales pitch. $1800 is a lot for 243 heads, not to far from what complete aftermarket castings cost.
The main reasons you are seeing recommendations for AFR heads are because they are (a) apparently within your budget (b) used by LG for repeatable results (c) CNC machined by a company that is well recognized and has delivered solid performance. Don't forget that flow bench numbers do not always equate to performance, especially where truth and advertizing are concerned.
If the shop is a sponsor, you may get more opinions on his work by posting the name. If not, is the $500 difference worth it? Only if his 243 heads outperform 95% of the other porters out there.
The main reasons you are seeing recommendations for AFR heads are because they are (a) apparently within your budget (b) used by LG for repeatable results (c) CNC machined by a company that is well recognized and has delivered solid performance. Don't forget that flow bench numbers do not always equate to performance, especially where truth and advertizing are concerned.
If the shop is a sponsor, you may get more opinions on his work by posting the name. If not, is the $500 difference worth it? Only if his 243 heads outperform 95% of the other porters out there.
to the OP, this is a very proven combo.
I currently have a G5x3 cam on a 112lsa with afr 205's 59cc and the .040 cometic for the tight quench. you will have to be flycut which was quoted to me for 200. i plan on having my combo installed this winter. i bought this combo off a local which is a member on here. the afr springs are fine on the heads. i will sell the heads and gaskets if you are interested for 1600. if not, i will have them installed regardless but i figured i would throw it out there... i really want to go back to my procharged goals. had a kit last year i had to sell due to a move. PM me if interested and GL on your selection...
I currently have a G5x3 cam on a 112lsa with afr 205's 59cc and the .040 cometic for the tight quench. you will have to be flycut which was quoted to me for 200. i plan on having my combo installed this winter. i bought this combo off a local which is a member on here. the afr springs are fine on the heads. i will sell the heads and gaskets if you are interested for 1600. if not, i will have them installed regardless but i figured i would throw it out there... i really want to go back to my procharged goals. had a kit last year i had to sell due to a move. PM me if interested and GL on your selection...
to the OP, this is a very proven combo.
I currently have a G5x3 cam on a 112lsa with afr 205's 59cc and the .040 cometic for the tight quench. you will have to be flycut which was quoted to me for 200. i plan on having my combo installed this winter. i bought this combo off a local which is a member on here. the afr springs are fine on the heads. i will sell the heads and gaskets if you are interested for 1600. if not, i will have them installed regardless but i figured i would throw it out there... i really want to go back to my procharged goals. had a kit last year i had to sell due to a move. PM me if interested and GL on your selection...
I currently have a G5x3 cam on a 112lsa with afr 205's 59cc and the .040 cometic for the tight quench. you will have to be flycut which was quoted to me for 200. i plan on having my combo installed this winter. i bought this combo off a local which is a member on here. the afr springs are fine on the heads. i will sell the heads and gaskets if you are interested for 1600. if not, i will have them installed regardless but i figured i would throw it out there... i really want to go back to my procharged goals. had a kit last year i had to sell due to a move. PM me if interested and GL on your selection...
My tuner and builder keep telling me I should duecthe 243 and port them and with the 92 fast intake and a tune I should be In the 450 hp. I just don't want to due this again, I will be very upset if the 243 don't hit my goal. Has anyone here hit the 450 hp with ported 243???????????????
I would call LG and ask about this!
Since you haven't searched for any info, here is what I was able to find.
LG Motorsports G5X3 CAM ONLY 405hp/375tq
99 camaro LS1, LS6 intake, 1 7/8 headers, bolt-ons ~ 405rwhp & 375 rwtq
G5x3 Cam Only
99 camaro LS1 with stock heads, LS6 intake, 12 bolt and otherwise similar mods to yours ~ 410rwhp & 386rwtq
DYNO RESULTS - Patriot LS6 style heads + G5X-3 cam...
02 camaro LS1 with PP LS6 heads (11.5:1), LS6 intake, 10 bolt and bolt-ons ~ 423rwhp & 389rwtq
G5X3 ’112’ Lobe Results
00 camaro LS1 with PP LS6 heads, LS6 intake ~ 447rwhp & 411rwtq
TEA Stg. 2.5 LS6 heads/G5X3 cam makes 447rwhp/400rwtq today
?? f-body, forged 347, TEA hand finished LS6 heads, 12 bolt w/ 4.10's ~ 447rwph & 400rwtq
Numbers near 450 with LS6 heads are rather exceptional. Since we don't know exactly what your base line is, you may have room to tweak what you have and bring the numbers up. More compression, better quench, intake and exhasut work, etc. Unfortunatley, stellar results don't often come from just putting all the parts together. See that link above about what it takes to dial in everything to achieve the best results.
One last note on PTV...from an authority on the G5X3
LG Motorsports G5X3 CAM ONLY 405hp/375tq
99 camaro LS1, LS6 intake, 1 7/8 headers, bolt-ons ~ 405rwhp & 375 rwtq
G5x3 Cam Only
99 camaro LS1 with stock heads, LS6 intake, 12 bolt and otherwise similar mods to yours ~ 410rwhp & 386rwtq
DYNO RESULTS - Patriot LS6 style heads + G5X-3 cam...
02 camaro LS1 with PP LS6 heads (11.5:1), LS6 intake, 10 bolt and bolt-ons ~ 423rwhp & 389rwtq
G5X3 ’112’ Lobe Results
00 camaro LS1 with PP LS6 heads, LS6 intake ~ 447rwhp & 411rwtq
TEA Stg. 2.5 LS6 heads/G5X3 cam makes 447rwhp/400rwtq today
?? f-body, forged 347, TEA hand finished LS6 heads, 12 bolt w/ 4.10's ~ 447rwph & 400rwtq
Numbers near 450 with LS6 heads are rather exceptional. Since we don't know exactly what your base line is, you may have room to tweak what you have and bring the numbers up. More compression, better quench, intake and exhasut work, etc. Unfortunatley, stellar results don't often come from just putting all the parts together. See that link above about what it takes to dial in everything to achieve the best results.
One last note on PTV...from an authority on the G5X3
Hi guys, there is 220 thou of valve drop with a milled, 59cc AFR and .040 cometics.
There is 200 thou of valve drop on a stock motor.
Any X series( G5, X1, X2, X3, X4, 111/112/114 excluding the xX ( which in most cases, thats install only here at the shop) will fit on a stock engine, 112 or 114. The X3 110 will not clear stock heads, but it will be close on the AFRs. You gain quite a bit of PTV with AFRs. If you are not sure, and want to know what your setup came in at, check it.
There is 200 thou of valve drop on a stock motor.
Any X series( G5, X1, X2, X3, X4, 111/112/114 excluding the xX ( which in most cases, thats install only here at the shop) will fit on a stock engine, 112 or 114. The X3 110 will not clear stock heads, but it will be close on the AFRs. You gain quite a bit of PTV with AFRs. If you are not sure, and want to know what your setup came in at, check it.
And if numbers are what you're after i still made 16hp and 14lbs tq more with AFR heads then all the gathered numbers above. I'm sure these were dyno jet numbers and i was on a stang dyno. Maybe i should of went to a jet to get higher numbers for post like this one.
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While I am sure that it is possible to get similar results from ported 243 heads done by the right guy(s), we have no idea who your reputable vendor is. And as long as he operates the flow bench, he can of course 'guaranty' that his heads outflow any competitor. Unless you have access to others with solid results from his work, it would be hard to trust his opinion of his work - i.e. sales pitch. $1800 is a lot for 243 heads, not to far from what complete aftermarket castings cost.
The main reasons you are seeing recommendations for AFR heads are because they are (a) apparently within your budget (b) used by LG for repeatable results (c) CNC machined by a company that is well recognized and has delivered solid performance. Don't forget that flow bench numbers do not always equate to performance, especially where truth and advertizing are concerned.
If the shop is a sponsor, you may get more opinions on his work by posting the name. If not, is the $500 difference worth it? Only if his 243 heads outperform 95% of the other porters out there.
The main reasons you are seeing recommendations for AFR heads are because they are (a) apparently within your budget (b) used by LG for repeatable results (c) CNC machined by a company that is well recognized and has delivered solid performance. Don't forget that flow bench numbers do not always equate to performance, especially where truth and advertizing are concerned.
If the shop is a sponsor, you may get more opinions on his work by posting the name. If not, is the $500 difference worth it? Only if his 243 heads outperform 95% of the other porters out there.