madkaw

You don't have to do anything to the pistons. You just don't want to notch far enough down that the top ring would reach it. When I get my block back I will try to measure somehow to give you an idea how much.

Cobraz, send me your e-mail and I will send you pics,i just did this but haven't posted pics to web site. I just did the bigger valve deal to my 240 so I can help you out Steve

My machinist was impressed with the quality of these valves. But he wasn't impressed with my research, since I bought these for my 2.4 block-oopps(i'm just a back yard mech). Needless to say we had some clearance issues so we wound up turning down the the head to a 35 and notching the block.There is no way they would have gone in my 2.4. I also bought the guides from the same guy and again my machinist liked the concentricities of the guides. As far as seats go, he made his own ber.copper to match the valves!

I am doing a e-88 the same way on a 2.4 block with .40 over pistons with a 480 lift cam and you have to put reliefs in the block or the exhaust will hit the cylinder. Be careful because a lot of guys are using the 2.8 block so mention of relief is needed but you WILL have to relief a 240 block with bigger valves . This is also verified in How To Modify Datsun book. Good Luck

I should elaborate that my engine is not stock. I am putting 1200$ in a e-88 head and the block will be .40 over and all the other upgrades to make the engine run well.(headers, electronis ign. SU's, balanced engine). I would like to HOPE for horsepower # close to a stock zxt.

Will the wide spacing of gears be that much of a deal for an everyday driver?I want to use this tranny with such few miles on it. Plus , further down the road the engine might see an upgrade . What would be ,or is there a counter solution for the wide spacing.

i realize this question is subjective to many factors but I will ask anyway.I bought as bw-5 speed from a 82zxt that had 60k miles on it. This was lady owned and beautiful until it crashed. Under normal useage how many mile would the clutch be good for. I will be putting this behind a modified 2.4na and the clutch looks great. Am i being to cheap to think about using a used clutch assembly or do they usually last many more miles. Is there a tell tale sign for abnormal or excessive wear on the assembly. thanks steve

I know; everyone is already to jump on the search wagon ,and I have searched.What I want to know is; has anyone CUT the maxima brackets off instead of pulling stubs and was there any problems with that. I am going to the JY and I would think it would be cheaper to have them cut-off the brackets then pull. Since the MM and MSA brackets are only 3 bolts I would think it would not affect the integrity too badly .

Thanks Jon for the pic, that helps me picture in my head the whole notch process. I would think that my machinist has been down this road before but he is not familiar with these older Nissan engines. Since this isn't a stock rebuild i am trying to cover all the basis with him so we do it right the first time. Thank God there is some great sites and help from you guys. I thought (my memory sucks)that when I checked the original valve sizes that my head had the larger ex valves but smaller in. valves(165). The head was off of a late model 71.So I guess what i am babbling for is I thought the interference would be the intake side

Anybody have a pic of the notching.

I have unshrouded the chambers, thanks. I brought this up to my machinist to look at and I appreciate all the advice. Sounds like the definitive answer is to plop the head on there and make sure nothing hits and then see the advantages of possibly notching. I think I must of read about this in my "How to Modify" your datsun book which the machinist has right now .

I've been searching but can't seem to find a definitive answer.I am beefing up my 240 motor and am wondering about notching my block. I have put the 280 valves in my e-88 head with a stage 2 cam and my pistons are .40 over. Do I still need to allow for relief in the cylinders. I thought I read that if you go atleast 10 over on pistons your okay but I can't find similiar info. Anyone steer me in the right direction. thanks steve

I wish the railroad would give me as much time as it seems you have to mess around with the Z. Its sounds like it gonna a be a killer.

Thanks olie05, I know 200 is very optimistic and I do intend on raising CR to the premium pump gas limit. IF later down the road i put together a stroker with my worked e-88 I wonder what the hp would be for the increased displacement?MAN- i wish I kept that turbo

Okay guys, I know this is small time for you guys but I was wondering if my 2.4 is capable of 200rwhp. I know I should of done a 2.8 and I won't even admit that I sold a 2.8trbo that i had (oops), but I had already thrown money at the original motor before I found the turbo car. I am doing a total rebuild with .40 over pistons and balancing the complete assembly. I am oversizing to l28 valves on the e-88 head with mild porting and port matching. A stage 2 cam, stainless valves, header, electronic ign,dual exhaust, SU's. I know if I was wanting bigger ## I should have gone a different direction but I think 200hp would make me very happy with this car. Maybe the next project I will have the knowledge from all you guys to go for big horsepower.

so I guess all of this is telling me that the only thing I did wrong was not put a price. I will try again for the third time to put my ad in. I also am not upset as I am confused. thanks for the response administrator steve

I have now had 2 ads deleted for not following the rules of placing an ad. I guess I am missing something. I have read the rule but can't figure out what I am doing wrong. The only thing I see is the selling price issue. But when you fill out the ad submission form it tells you to put a 0 if you don't have a set price. Plus I have several items that don't go together. the rules also say something about paying for the ad but how is that done. I have donated to the club and I have been a member for several months atleast. I really enjoy this site and it is a very useful tool to my restoration of my z, so I am feeling fustrated at this point, can someone help me? steve

Okay, I give up. I am wanting to place an ad in the classifieds section but I do not see how I do this. There is no place to click that says 'place ad here' or for me "click here stupid". I can access all the ads just can't place one. Please help thanks steve