Time for heads....on a budget
05-31-2012, 01:39 PM
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Time for heads....on a budget Well guys its time to get some heads on the car. I built the motor and didnt have enough to do the bottom & top end i wanted so had to split things up.
I do not have too much money to spend but i think my # 1 option would be
http://www.totalengineairflow.com/pr...linder-heads1/
for 2g's i think these will be tough to beat.
option # 2
http://www.summitracing.com/parts/TFS-30400008-M54
option #3
http://www.jegs.com/i/Dart/301/11310...rentProductId=
option # 4.....Le2's
what direction should i go. I know Le2's will run 1300 and the TEA's are 2k. But i would be willing to spend the extra coin on the TEA's cuz when i get them i can sell my cleaned up heads, 918 springs, etc etc to help recoup some money. Im aware un ported aftermarket heads prolly wont flow like Le2's but they have potential for quite a bit more down the road.
But i also called LE, asked about using all my current hardware( have titanium locks, retainers already) springs, etc etc. and asked what i would be for porting + bigger valves.... roughly 200-300 less than normal prices. So if i use could almost get them for 1000 which is tough to pass up......
goal is 430rwhp + 390rwtq +....357, forged speed pro pistons, forged scat I beams, stk crank.
I do not have too much money to spend but i think my # 1 option would be
http://www.totalengineairflow.com/pr...linder-heads1/
for 2g's i think these will be tough to beat.
option # 2
http://www.summitracing.com/parts/TFS-30400008-M54
option #3
http://www.jegs.com/i/Dart/301/11310...rentProductId=
option # 4.....Le2's
what direction should i go. I know Le2's will run 1300 and the TEA's are 2k. But i would be willing to spend the extra coin on the TEA's cuz when i get them i can sell my cleaned up heads, 918 springs, etc etc to help recoup some money. Im aware un ported aftermarket heads prolly wont flow like Le2's but they have potential for quite a bit more down the road.
But i also called LE, asked about using all my current hardware( have titanium locks, retainers already) springs, etc etc. and asked what i would be for porting + bigger valves.... roughly 200-300 less than normal prices. So if i use could almost get them for 1000 which is tough to pass up......
goal is 430rwhp + 390rwtq +....357, forged speed pro pistons, forged scat I beams, stk crank.
05-31-2012, 01:48 PM
#2
The TEA stuff is flowed on a 4.125bore with a pipe so the numbers are inflated vs. most testing you see.
I don't think any of those will get you your goal, I challenge you to find examples that did AND actually run well enough at the track to support the dyno numbers.
I am not saying anything you chose is a bad product, just think your goal and chosen options are out of line with eachother.
I don't think any of those will get you your goal, I challenge you to find examples that did AND actually run well enough at the track to support the dyno numbers.
I am not saying anything you chose is a bad product, just think your goal and chosen options are out of line with eachother.
05-31-2012, 01:50 PM
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Dont waste your money buying a cast head that will still need to be ported to be worth your while. Send you heads to LE or AI get them hogged out and send your intake in as well. Best money you will spend on the car besides your converter and gears. You will thank me later plus save some money vs Cast heads. If you had no budget and wanted to go really fast then AFR comp heads or LE3 heads or 21 Trickflows would be the suggestion. My first lt1 i bought dart heads with a comp cam and could not figure out why i was not pulling from cammed ls1 cars. learned my lesson and read up on lt1 engines for a few years then re did everything, i ended up with a le3 head custom cam, ported intake and a 383 bottom end and shot a ton of nitrous in the thing. Lasted 5 years and was a ton of fun. You will get many ideas, so weigh all your options before you buy.
05-31-2012, 02:01 PM
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Dont waste your money buying a cast head that will still need to be ported to be worth your while. Send you heads to LE or AI get them hogged out and send your intake in as well. Best money you will spend on the car besides your converter and gears. You will thank me later plus save some money vs Cast heads. If you had no budget and wanted to go really fast then AFR comp heads or LE3 heads or 21 Trickflows would be the suggestion. My first lt1 i bought dart heads with a comp cam and could not figure out why i was not pulling from cammed ls1 cars. learned my lesson and read up on lt1 engines for a few years then re did everything, i ended up with a le3 head custom cam, ported intake and a 383 bottom end and shot a ton of nitrous in the thing. Lasted 5 years and was a ton of fun. You will get many ideas, so weigh all your options before you buy.
05-31-2012, 04:04 PM
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I ran the as cast trickflows and they performed decent. I ran the times in my sig with them. Ported heads will diff out preform them but there not bad as cast. If you do go with tea. Will your speed pro pistons clear a 2.055 valve?
05-31-2012, 04:18 PM
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most H/C/I LT1's make 410-420rwhp. the 350/355's only put down 370-390 rwtq.... where as the 383/396's do 410-420ish..... or something very very close to the HP...440/435, 450/440, etc etc
So from what ive seen/read I should be able to do 425rwhp....but only 375-390rwtq..
05-31-2012, 09:54 PM
#12
430/390 at the wheels is a lofty goal, but you'll get it with the M6 IF you build it right with good ported heads, and tune it right. You won't get it with unported aftermarket heads. AI 200's or LE3's should get you there. LE2's maybe. Let them spec the cam for you too.
06-01-2012, 05:50 AM
#14
The car in the video's above is NOT your average 355 by any stretch of the imagination so using that as comparison to the OP's situation just doesn't make sense. Aleks had more money and time invested into that setup than you could probably imagine.
I would have to agree that AI 200cc heads, a big(ish) cam, GOOD tuning with matched components and you could get there.
I would have to agree that AI 200cc heads, a big(ish) cam, GOOD tuning with matched components and you could get there.
06-01-2012, 07:45 AM
#16
Aleks's setup was also solid roller I believe peaking just inside the pcm's limits but required an aftermarket computer to let you rev high enough to get the shift extension right.
I bet the upgrades to solid roller and the aftermarket injection/wiring was at least $3000 and that is a lowball guess.
I bet the upgrades to solid roller and the aftermarket injection/wiring was at least $3000 and that is a lowball guess.
06-01-2012, 08:09 AM
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430/390 at the wheels is a lofty goal, but you'll get it with the M6 IF you build it right with good ported heads, and tune it right. You won't get it with unported aftermarket heads. AI 200's or LE3's should get you there. LE2's maybe. Let them spec the cam for you too.