How much hp/ft-lb should this set up make?

I have the opportunity to purchase a set of aluminum LE1 heads and LE1.2 cam. I am wondering what I can expect to make as far as hp and torque? I know what Lloyd's website says, but it is stated as power for a 6 speed F-body.

Any thoughs? Should I also get 1.6 RR's?

I did the F-body heads with Comp 1.6 RRs and matching valve springs. Also used a Crane cam....but I have to look up what I used at home since I can't get to it here.

What I did wrong was this....DO NOT INSTALL THE HIGH FLOW OIL PUMP some people recommend. It trashed my motor. Shoulda listened to Crovo.

I was never able to measure what kind of power it put out....but I can tell you this....it would easily smoke the tires with my 3.42 Posi rear. BIG DIFFERENCE. Pulled like a bandit too

I have a 115k motor that I plan on doing this too for my wagon. I would like to see if I could use the stock heads though. But I know the F body ones don't have the pressed in studs like ours do. But the Crane cam I used was not that crazy.

Will you put new bearings in it too? Mine were a little worn after 130k..did the mains but my cam bearings were really nice.

When I took the block to a builder after it went, he showed me what happened. The pump starved the engine for oil and that is why she started knocking

I shoulda listened to me too. I was talked into a HAYUGE pump for my Impala engine and it's just riduculous. I will change to a more stockish pump before I put the engine in the Marshmallow.

You really can't go wrong with Lloyd Elliot though! Give him a call or shoot him an email and he'll know what ya need.

What are your goals with the car? Street performance? Dragstrip? Is the current setup not sufficient? Have you tried different gears and a better torque converter?

sherlock9c1 wrote:

What are your goals with the car? Street performance? Dragstrip? Is the current setup not sufficient? Have you tried different gears and a better torque converter?

Looking for street performance, with very limited drag track time. Planning on 3.73's and a posi soon.

I spoke with Lloyd this morning. He said he has B Bodies making over 380 hp with LE1 heads, RAISS, F body MAF, 58 MM TB, ported intake, Clear Image Tri-Y's, true duals with SpinTech mufflers, Dyno Tune, etc. Average B Body will see 340-375 hp with the heads.

I plan on all of the above mentioned mods plus 1.6 RR's. Looks like the heads might be a good deal then...

What do you have for exhaust? It won't do any good to put a good motor with stock manifolds and cats.

Have you looked at reconditioner's setup? Making fast wagons isn't an unknown path. He's got a nice intake/exhaust, 3.73/posi, and a good converter, and programming, and I think he runs mid 13's on a stock motor. Would that not be enough for you?

sherlock9c1 wrote:

What do you have for exhaust? It won't do any good to put a good motor with stock manifolds and cats.

Have you looked at reconditioner's setup? Making fast wagons isn't an unknown path. He's got a nice intake/exhaust, 3.73/posi, and a good converter, and programming, and I think he runs mid 13's on a stock motor. Would that not be enough for you?

Yeah, he is using the stock heads too. Same 1.6 RR and springs I bought. His studs have not popped out yet! (not that he drives it much)

I gotta ask this too..how many miles do you have on it? 85K like your sig says?

Why not do the 3.73's and the 1.6rr/springs and Yank convertor like Frank has? I ran his old Edge convertor and it was ok...but the Yank is REALLY nice.

Try some of the lesser header options too...you should not keep those manifolds if you are throwing down $$ for upgrades to the engine.

Current exhaust is Pype's X and Summit Turbo's. Was planning on Tri-Y's with cat delete pipes before installing heads. Also going with 3.73's and a posi.

I would really like a 12 second street car (12.99 or lower). I know it can be done with nitrous but then I have to always fill the bottle. Would prefer to keep it NA.

I am going to think about this over the weekend....

SO what did you decide...I am curious...

I decided to hold off. The LE1 heads were a good deal but probably will not allow me to reach my power goals. I spoke a few times with Lloyd about what to expect and he said 400 RWHP was going to be hard to achieve with the LE1's.

My plan is to get a posi, 3.73's, headers and a tune by next summer and see what she can run. Then I will decide what I need to do to reach my goal............a 12 second sleeper

Did you talk to Secret4mula at WF09? He had a nitrous setup in his wagon and owns a speed shop in the buffalo area. You would probably be wise to talk to him; also, there's a local Rochester-NY impala club called RAISSE. Their website is [You must be registered and logged in to see this link.].

sherlock9c1 wrote:

Did you talk to Secret4mula at WF09? He had a nitrous setup in his wagon and owns a speed shop in the buffalo area. You would probably be wise to talk to him; also, there's a local Rochester-NY impala club called RAISSE. Their website is [You must be registered and logged in to see this link.].

I did talk to Paul (secret4mula). He was nice enough to offer Matt and I a chance to see his shop and do a small project some night on the lift. (Did someone say posi and 3.73's?

Quote :

I did talk to Paul (secret4mula). He was nice enough to offer Matt and I a chance to see his shop and do a small project some night on the lift. (Did someone say posi and 3.73's?

Sounds like a road trip upcoming... give me a buzz or PM me, before you decide to shuffle off to.... "Chicken Wing City". If I'm available, I'll take Shammoo.

I,d like to add my 2C here , i,ve built some motors over the years , It sucks to be 1/2 way thru 3rd gear and have 5qts of oil in the valve covers,.
It,s better to have a high pressure pump rather than a high volume,.as has been experienced first hand by many folks,. the high Volume pump emties the pan unless you,ve modified the block to help with oil returns,. glyptol, radiusing holes, widening holes, grinding runoffs yada yada,.
There's a simple device thats very good to have on any competition car, its an oil accumulator,. it stores oil till the pressure falls too low and then adds oil,. Google it,. you'll understand real quick what i mean,.it will save a motor time and time again,.
best bang for the buck on a daily driver is the nitrous,.

Nick

Why not just use a stock pump and put a high-pressure regulator spring in it?

Or on the flip side, the stock LT1 oil pump is supposed to put out 55psi. At 157k, mine still does 45psi at WOT. Is that not sufficient? My motor barely sees 5500rpm.

sherlock9c1 wrote:

Why not just use a stock pump and put a high-pressure regulator spring in it?

Or on the flip side, the stock LT1 oil pump is supposed to put out 55psi. At 157k, mine still does 45psi at WOT. Is that not sufficient? My motor barely sees 5500rpm.

Exactly,. but motor building for a lot of folks is psychcological,. so a new oil pump seems to mandatory,. pressure is nothing more than a measure of restriction against volume,.so 10 psi less than new at 157k, indicates that things are worn some,.so you,ve bigger oil leaks now than before,. oil pumps themselves wear very little,.i,ve often used decent old pumps with the spring tweaked with a washer or two,. i won't use a pump from a blown motor tho,.

nick