Z train

Did you check the pick-up screen for pulp?

Blake machine knows Datsuns.

Vacuum leak is the first thought.

"Looking good" isn't good enough.You need to put a straight edge on it and verify.The only difference form the above advice is that i use Permatex Copper in a tube.But other-wise agree.

How come the shop isn't eating the $66?

Those get jammed up pretty good.So much condensation from thermal cycling.SHouldn't be a problem finding.Do you have a picture of it?

It won't as HP/CI curve is not linear.And Leon-wizz off.

Lesson of the day,if they don't know Datsuns,this crap happens.THe tube that stays with the manifold after the arir"piping" has been removed-right?

Rebello's page in reference to his builds says the 3.0 motor CAN produce 320. 2.7 is limited by block parameters and exists SOLELY for guys who want their original blocks used. 3.0 you left out the oerative word-CAN produce.It can produce less or more. The 3.2 produces 365hp not 320. Nice cherry picking of facts.You must have voted for Obama. And you still haven't answered the what the common thread was that permeated the three links you posted.

Toonis-you're on the right track with the manifold idea.

That's neat.What are the carbs rated at for CFM?What did they do for power/driveability/mpgs? Also-how long to get them synced?

Answer the question-is HP increase with CI displacement linear? Mr Mortensen,answer your question,also.

Absolutely.When i had my Cobra,people asked-Is it finished?They are never finished. Just beware of the stud that goes into the timing chain cavity. Fastchick-you need to get some PB Blaster if you haven't already.Outstanding stuff.

Quite the contrary.And you didn't answer my question.

2)displacement.302 what?SBF?Or than minorly less a piece of crap 302 SBC? 3)400's were a pile of junk also.Comparing V-8s to L motors is a non-sequitur. 4)Brush up on your reading comprehension, 5)What part of can't be done don't you get?What works for a 2.8l will not(always) work for a 3.1. 6)DO i need to keep telling you that CI & HP increases are not LINEAR?

1)Yes and no. 2)As an illustration of what a stroker can do.A "non-stroker" can never hope to achieve stroker "numbers". 3)Most of it as the header is quite point-less with a low RPM motor( i used it because i had it laying around and i'm in the process of having an L-16 manifold prepped) 4)The OP DID NOT mention "just a short block"in his original post.If you are doing a rebuild,then you are replacing the cam-this is a moot point. 5)What if? 6)Wrong-Horse-power increase with displacement increase is NOT linear. jmortensen- I looked thru those topics you linked.And i noticed one common thread.Tell me what it is.

Just had 24 tons of hay delivered the other day.

1)Good?How about extremely pertinant?The motor is in my wife's 620.It's is going to be used as a "run around/ranch/toy for her".I'm also dropping from the 4.37 gears to 3.88's which will put cruising rpm smack in the middle of that motor's torque "table". It also has a Weber & a header + a cam from Rebello's.I am not looking for HP as it is a ranch truck,and Dave's cam selection worked better than i could have hoped for. 2)Absolutely. 3)Why is it that you ignore that the major attribute of a stroker is torque?This is what makes the stroker work so well on a street car.And torque wins street races.

That would be really neat to see done. You have a leak in the cabin somewhere.At the age of these cars,seam sealant has dried and cracked and other gasket types have become porous.

Some of us GUYS should be able to give you a tip.....Below is what i did with my housing.And i used SS studs & nuts and then powdercoated it.As far as the Welder goes,first they are really REALLY handy.They are one of those"i don't know how i got along without it before" tools.Especially on a ranch.Having said all that.Save you money and buy a decent one.Make it 220volt and gas.Check out a Millermatic 180. To the stud issue.But a set of lefthand drill bits,cut the stud flat and simply drill it out.The bits will come in handy down the road also.

What vehicle is the motor in? What is it going to be used for? What am i doing with the gears?

Stock L-20B HorsePower -@ 112 @ 5600 RPM Ft. lbs. Torque 108 @ 3200 Keep in mind,these numbers are at the flywheel . Below are my actual numbers at the wheel.

You left the torque out of your equation.My LZ-23 had a FIFTY percent increase in torque.

If the stroker will not put you in a financial bind,do it.I have two.One is a 3.1 and the other is a LZ-23 and i wouldn't trade either one of them.

Bottom line:If a Z(1st gen) is in perfect order(perfect order meaning in as "left the factory condition",then how does adding a spoiler introduce exhaust fumes to the cabin? By the way,i have used no expletives or insults.