good buy or not ????

[Xronin]

ok so i have a chance to buy a 1979 351 block It has been tank tested, cleaned, all new freeze plugs notched and was bored .60 over , i was wondering if this is a guild building block to start with ? i have a 95 stock GT and want to build a motor to drop in it (dont want the car down to long) how much would be to much to pay for this ? also again is it a good base to start with , i plan on trying to make around 500+ .



i guess my main question is on the .060 over , most pistons i see are around .040 over.




ok so found out a few more things about the block a little bit ago , the work on it was dont a little over a year ago still has all recipts , it has been wrapped and siliconed since , lemmi know guys (and yes i know im a noob for not knowing these things alrdy.

 

[CanaryGT]

If you consider yourself a noob and you want to put a 351 into your Mustang, but you dont want a lot of down time?

I dunno.

I want to go the same route but I learned by rebuilding my 302 First.

 

[Xronin]

noob to alot of aftermarket stuff i should say , i also plan to fully build the motor and trans while i keep the stock 302 in my car till its time to transplant the 351

 

[CanaryGT]

Ok. In that case then I did an entire motor pull and such in under a week in my driveway with it snowing outside. So Im thinking you shouldnt be down that long. As long as you have a friend or two.

 

[Xronin]

parents own a shop :thumbsup: its helps alot but im more on the side over wondering if this is worth buying for the price and the fact its alrdy .060 over

 

[nicostang]

price is always the key...

Here in cali, you can find 351 at junkyards for 200-300 bucks(not clunkers)... you just have to take them out and do all the work that u mentioned.

 

[Xronin]

price with all that done is $350 , worth doing ? and is the .060 bore gonna throw me any issue that a .040 wouldnt ? reliability ? heating ? anything noticable ?

 

[Sinned83]

Idk its a 30 year old block

 

[Xronin]

Idk its a 30 year old block

There are people running damn strong 69 blocks..... I'm just asking abput a .060 over 1979 block is worth it or not

 

[Venom351R]

do you realize what it takes to drop in a 351 into a 94-95? Its not...pull out the 302...drop in and bolt on the 351. You need lots of other parts to make it work

 

[Javi]

do you realize what it takes to drop in a 351 into a 94-95? Its not...pull out the 302...drop in and bolt on the 351. You need lots of other parts to make it work

+1

i highly suggest you to do some research on the 351 swap
I willl do a 306 HCI before i do a 351 myself.

 

[Xronin]

Well I'm looking at it in the way of , I want to make around 500-600 hp and streetable with decent manners , from what I know a stock 302 would crap on itself that high and a 351 would be ok , I have tried posting some threads on what would be a good 302 build for it but seem to just get. (Go search for it) responces , I know I can go with a boss or dart block to hold the power but then again I'm left clueless on the internals of the bottom end to make the power I want. On s/c or turbo. Seems like it was easier to ask about a 351 ... guess I was wrong again

 

[Sinned83]

Idk its a 30 year old block

There are people running damn strong 69 blocks..... I'm just asking abput a .060 over 1979 block is worth it or not

IMO your motor is only as good as its weekest link. Yeah they may have been built good then whatever but at the end of the day your starting point is a 30 year old block.

 

[Javi]

Well I'm looking at it in the way of , I want to make around 500-600 hp and streetable with decent manners , from what I know a stock 302 would crap on itself that high and a 351 would be ok , I have tried posting some threads on what would be a good 302 build for it but seem to just get. (Go search for it) responces , I know I can go with a boss or dart block to hold the power but then again I'm left clueless on the internals of the bottom end to make the power I want. On s/c or turbo. Seems like it was easier to ask about a 351 ... guess I was wrong again

save yourself sometime and send LAFENATU a pm.
he is being a good source and have answered most of the questions i have had about my car.

 

[rz5.0]

get 94 n up block you will be able to use most of you stuff .60 over does not leave you alot more room for future work. 351w are all over the place.

 

[MustangMoser]

Well I'm looking at it in the way of , I want to make around 500-600 hp and streetable with decent manners , from what I know a stock 302 would crap on itself that high and a 351 would be ok , I have tried posting some threads on what would be a good 302 build for it but seem to just get. (Go search for it) responces , I know I can go with a boss or dart block to hold the power but then again I'm left clueless on the internals of the bottom end to make the power I want. On s/c or turbo. Seems like it was easier to ask about a 351 ... guess I was wrong again

you can take a 351w to .080 over before you need to worry about heating issues as far as swaping a 351 into an sn95 car it is a lot of work, exhaust has to be changed, hood will not fit unless you use drop mounts and then put spacers on your k-member. if you want 500hp reliably and dont want to spend the outrageous prices for a dart block and built bottom end, the 351w is your answer. it can be done for much cheaper. as far it being a 79 block its not going to be a roller block, so you'll either have to run flat tappet or spend 500 bucks on a set of roller conversion lifters. your front accesory brackets will have to be changed to 351 stuff. there's a lot to the build but it'll walk the dog on a h/c/i 306 all day long. there is no replacement for displacement. minus boost and n2o

 

[Venom351R]

Seems like it was easier to ask about a 351 ... guess I was wrong again

Your not wrong, you just need to lay the ground work down for a project before you jump feet first into it. Meaning knowing what needs to be done and the cost. There are many company's out there that can give you good advice on rotating assemble's and such. Read this link it will give you and idea of what you need to do for a 351 swap. Mine was done when I got the Mustang so I lucked out.

http://www.mustang50magazine.com/techarticles/m5lp_0206_mustang_351w_swap/index.html

there's a lot to the build but it'll walk the dog on a h/c/i 306 all day long. there is no replacement for displacement. minus boost and n2o

not always....Ive taken down my fair share of boosted Mustangs at the track.

 

[Xronin]

So would you guys think a 351 build or a aftermarket 302 block build to make 600-700 hp would be better?

 

[wannaboost94gt]

Dart 302 :thumbsup:

 

[nicostang]

you can always stroke a 302 to 342/347, Yes, it is a bit more expensive, BUT if you have the money you can do this:

a good aluminum 302 block, and stroke it to a 347 with forged internals. OR boost it up!

It does take ridiculous amounts of money to break 400+ rwhp

good heads ~1200
cam ~200-300
s/c? ~2500 (edit... actually s/c kits are around ~3500)
stroker kit ~1800
new block (not sure) ~500-1000
forged internals ~500
little extra things needed(gaskets, etc) ~200

it is quite a buck! and thats NOT counting suspension, tires/wheels and clutch/tranny

I have a stock 95 except for full exhaust with longtubes and ram air intake along with a few suspension stuff. I am thinking on what to do... but since my goal is ~350-400whp I am really thinknig of doing a s/c and maybe bore to 306 with forged pistons. Stock blocks are good till around 500whp. Heads are always good aswell but they are quite expensive... So I also have my doubts.

good luck!