flyn found it lol,..guess it wasnt as old as i thought there was also a thread abut using an 2 aluminum i4 heads off a lotus or something....sounded intersted till we all agreaded that it;d bottlle neck any performance...but still might be worth the try with us guys with boost? lotus 907 i4 heads
Sure you could stroke a 350 BUT watch out for cam to connecting rod clearances. If boring over 40 thou make sure you sonic test the block, and if driving on the street I do not suggest 60 thou or larger bore.
Which rods are you using? Call Bob M like like mark says, I gave him a 350 and he stroked it and supercharged it. I believe he simply offset ground the crank but likely had to clearance the rods near the big end. Keep in mind that you will also need valve reliefs in the pistons most likely because there is not really that much room between the valves and the pistons... Stroking it just makes this worse. Also I just wanted to add that be sure to use the actual cam you plan to run in the engine when completing mock up to see if you have space or stroking, different cams may have more or less interference with the crank. Look at the roller cam TA did, it hits the crank in a stock engine.
Thanks Sean. We are just at the beginning right now, everything is still in theory. According to my machinist it looks like the most we can go on the crank is 100 and the specs on the Honda rod looks good for this. The pistons should not be an issue, they will be custom made to whatever spec we need via Diamond. It seems like everything I read on the subject is half of what we are trying to do, and half of another direction. This engine will be using a Carburetor.
Can someone put in laymen terms what "stroking" an engine means. I've heard the term a million times and don't quite get it. Im guessing it has something to do with customizing the stroke length- but don't Buick motors already have a noticeably larger stroke than most motors?
Increasing the stroke increases your cubic inch vice versa for decrease. if you increase it you make more torque & horsepower. Basicaly creates a more efficient combustion cycle.
Something like using a shorter rod to lower the piston inside the combustion chamber- giving it more room to go up and down? Or are you just boring the hell out of it?
The deeper into the cylinder bore, creates room for more air and fuel = more power. No boring the hell out of it yet :Brow:
You can get the rods in 6.300" length, and your piston pin height will end up being about the same as the rod journal diameter 3.84" x 3.95" would be nice at 366 cubes, comes in at just under 6 litres - 5997 cc
i'll be following this thread i have too much $$ to start over on the twin turbo build but if i find another buick for cheap i'll be doing a stroker motor with a s/p intake for sure btw, youre low mi 73 engine is about to be in my car now :-D
transportations problems lol and had a hard time getting my buddy to stop by with his truck! I put all new gaskets in it along with oil pump and waterpump turbos and singleplane intake will be own before winter ends, as i'lm going to try and drive it as long as mother natures lets me
I figured it took you all this time to get it out of that garage we put it in! That right of way doesnt leave you much room to play with. That motor really is in good shape, it should last you awhile.
yea, it was a bitch, i dug it up and made the road more level so it's a hell of alot easier to get engines in and out now..garage is fairly empty now also ' btw, whats the exact honda rods that you'll be using?
I just called, had her go out and get my note pad. The Honda rod is: 1.88 journal 6.300 long 9.45 wide on the big end 9.27 pin dia. same as sbc
cool i started back to work this past monday, and theres a 76 skylark with buick 231 for 500obo this could be a great candidate for a stroker like youres down road in a summer or 2!
I just edited my last message, called home for the numbers. I wanted to bring them to work today, but forgot... It's hell to get old!
