340 stroker build will this make our goal
- Thread starter scampy
- Start date
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mderoy340
Well-Known Member
If you bought a balanced assembly the 4.070 piston will weigh more and throw off the original balance. You should press whomever screwed up to pay for a local balance job.
ValiantRacing
Well-Known Member
We did a 408 for my brother, only 10.2 on the comp and the duration is @ 50 254/256 and the it sounds good, but not that radical the big stroke definitely eats up the duration, iron heads pump gas on 10 inch tire, runs 11.00 in a 68 Dart
2nd set of pistons have arrived and to machine shop,the kit is from scat and they used the race tech/auto tech pistons,still not fully happy as i paid 218 for an expediete on the pistons which worked until the pistons came wrong and now behind a couple weeks,no mention of a refund on that as of yet.
Do you know what weight/gear ratio for the car and what kinda rpm he was turning
Yikes I hope it all pans out for you quick and painlessly. It can be so Frustrating sometimes.
Yea no doubt. Hydraulic, Solid, or Roller?
ValiantRacing
Well-Known Member
Car weighs around 3000 without driver, gears are 4.30 and 6500 at the stripe
sst3193
Well-Known Member
I wouldn’t get too excited about a little extra ring gap. I did that putting together a 440 and it still leak tested, less than 5 percent, 2 years later.
I was tempted but the one was like 28thou and goal was 18-20 so i was a bit leery to do it,i'm behind schedule since the pistons i said whats a few more days
I was tempted but the one was like 28thou and goal was 18-20 so i was a bit leery to do it,i'm behind schedule since the pistons i said whats a few more days
28 thou isn't too bad...now you are safe to run nitrous :-D
just about ready to go back into the car,finally feel like making some progress after all the various measuring of stuff,still will have the valve train to peek at when pushrods arrive,the intake fit looks decent so getting there but still so much to do
Making its way back to its home,engine set in and trans and converter bolted up,stupid ice storm here today,not even taking a chance trying to make it to the garage and points open this coming weekend oh well
need to get some shorter pushrods,the hughes cam must be bigger base circle or something cause the old ones now have my adjuster almost in the rocker,ordered a set they stated they where shorter but did not pan out as the are about the same as i have,guess i'm ordering a checker and go from there,opening points day not looking good at all at this point
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you might want to check the new lifters compared to the old lifters on where the seat is located...if you have AMC solid lifters there seat is higher and you pushrods will be too long...
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