77 oliver puller build

617mach_1x

New User
hey guys! im in the process of building a 77,

cam shaft is out at bullet cams

ours is a fleetline 77, from what ive read the
super 77 crank is different?
should i find a super 77 crank and 88 sleeves
bored out? i would end up with the 311 CI or
something like that right?

right now im running a 1550 carb, intake, exhaust

anything to gain with the 1550 vacum advance
distributor? running stock delco with elec.
ignition right now

head, port the stock 77 head or find a head? 1550
head? 1650 head? cutting 100-125 thou off it also
while its off

any help would be great!

looking to get 70-80hp out of it
 
You need to do your homework better! You said ours is a fleetline 77, from what I ve read the
super 77 crank is different? Yes it is and the super block has a better system off retaining the main bearings. You also said: 88 sleeves
bored out? If you go that route the 77 block will need to be bored out to accept the 88 sleeves. You said:1550 vacuum advance
distributor. The vacuum advance is for idle. not higher RPM's. You said: 1550
head? 1650 a 1650 Head is longer. Why not run 550 valves. does your machine shop have a good bowl cutter?
 
yea i probably do, trying to find stuff on these and keep it in order is kind hard when you have way to many project and only so much time to do them!

reading through 100s of post is to time consuming also, havent been around tractors much other then this year also so please dont mind my non-sense questions

i knew about boring the block for 88 sleeves not a huge deal

1550 distributor no good, no big deal just using big block v8 thinking

bowl cutter, yea probably does have a decent one

my machinist is the skidoo racing team i race for is owner, so i get stuff done cheap

main question i guess, i want some in the 300+ c.i with 70-80 hp, is that possible? what will it take?

porting is going to be done by me, ive ported sleds, dirt bike, v8 fords before

going to do the manifolds and head to get the best airflow possible
 
there are bolt in motors from 88-1850 tractors that will fit a 77 chassis if your rules allow it would be allot cheaper route i also have a super 77 crank that could be offset ground for a cheap stroker motor if desired 6182466030
 
(quoted from post at 03:22:07 08/27/13) there are bolt in motors from 88-1850 tractors that will fit a 77 chassis if your rules allow it would be allot cheaper route i also have a super 77 crank that could be offset ground for a cheap stroker motor if desired 6182466030

i might take you up on that, ill try and give you a call tomorrow

do you know what else i would take to build the motor i mentioned, 311ci only limit we have is 3000rpm nothing else
 
3 3/4" pistons and sleeves. 1555 head or big a valves as possible in your 77 head. Shave 1/8" off or a little more. Murphys intake manifold and roller rockers. Big zenith carb. I hope your cam builder isnt doing your cam until you know what your compression ratio is going to be... If you do all that you will be under 300 cubes yes, but you wont have to machine the block or crank at all and still be at 70 horse with race gas.
 
I wonder how many people on here Know what a 617 Mach1X is? I had a 617 mach that I Xed but good never get it to work right. the engine ran good, but the clutches got way to hot. Chuck
 

hey chuck, always nice to hear peoples old sled stories, it was my first sled when i was 16, was a tank but had fun anyways!
 
my favorite was my 99 670HO, it really gave the 800 cats and pols. fits on the long lakes in Canada. got 10,000 miles on that baby before I had to rebuild the engine. my last sled was a 2006 mach z with the 07 tune and clutching. that was one go fast sled. If you use the super 77 crank you can stroke it 1/4" by offset grinding to 2"journal, you can use your stock 77 rods, rebuild them first, use your 77 head and install 880 or 550 valves which ever are the biggest and do a good port and polish job. but don't get too carried away or you will hit water. try to get an intake from a 1550-55 then get a good size carb. I use a USX37 marvel schebler on mine. once you choose your carb you can find a pipe and flange at NAPA to match your new carb., then cut the flange off the bottom of the intake and bore it out to accept the new flange pipe. after you get the new flange welded on, port the intake, I had Extrude Hone do mine. If you use the 3 3/4" overbore you will have 265cu.in. I had Competition cams do my cam, the stock but new valve springs and shimmed are good for 4000rpm, (that's what mine spins. If you use the stock 3 3/4" pistons you will have to mill 1/8th" off the top. mill all you can off the head. Also it wouldn't hurt to hone those new sleeves to give some extra clearance for the pistons. this setup should be good for 75-80 hp. good luck with your build, Chuck
 

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