I give up on this thread. If there is a moderator out there, please lock it down. We have gone from discussion to nit picking sentence structure, and its no longer beneficial.
Holik95 said:I'm already making 300 rwhp right now. So I'm only going to pick 5 rwhp with a 331.
Rick 91GT said:I can back up B&B's findings, I too have seen very little difference between a 331/347 with similar components, even the curves were very similar.
I determine what would be best for the customer by the ultimate use of the car, auto or 5spd, weight, the future and as always budget.
The 331 vs 347 thing has been argued about for years, you can build a 347 different to take advantage of the slightly lighter piston (when using a 5.4" rod) and small increase in stroke.
Green 94 5.0 said:there are so many variables that you cant even compare. everything from the h/c/i setup, to the comp. ratio, to the tuning, to the weight of the internals can all effect power output. i highly doubt that the rod ratio effects power negatively in a noticeable way. everything being equal, the 347 will make more power than the 331. will it be a huge difference? i doubt it. if i was planning on going n/a with the new motor, it would have been a 347 without a doubt. i chose the 331 because being that im looking at 450-475whp, which is already painfully close to the stock blocks limits i wanted the rotating assembly that would put the least amount of undue stress on the block. i couldnt justify the added risk from the sidewall loading for the 16ci. regardless though both are tried and true strokers and both will net good gains over a 302. we are all here for the same reason, so lets not forget that.
Blk91stang said:This is basically what I was trying to say, except I came out as an ignorant ***hole who only threw fuel in the fire.
Thanks Rick.
final5-0 said:Matt
I can only speak for myself
I did not see you in that way at all
There's many variables to an engine other than displacement.
The above is a direct paste from one of your earilier posts and those words don't look ignorant to me
I think some in this thread are mixing applications here.
331/347 combos for totally strip or where the focus is more on the strip than the street can be as you and Rick have pointed out. All kinds of things could be happening where it would be difficult to have an apples to apples comparison when talking about peak dyno results ... again ... as you have pointed out Matt
However ... when talking about just a general all around or non specific built combo ... for a street oriented application. I don't think it is unreasonable to say you should see some extra performance (although it would not be a huge amount) from the cubes of the larger motor.
331's are not wrong or bad or ineffective IMHO
I've tried to keep my participation in this thread neither offsensive or defensive but then again ... how others perceive your comments is beyond your control.
Rick was kind to come in here and give his findings and since he is a Pro ...
I feel for me ... I have to keep an open mind about what he said
All my life ... I've seen cubes give more of the kind of performane I want for a STREET car and thats how I will sum up my thoughts.
Sorry if you thought I had my six guns pointing at you Matt
It was not my intent to even draw em
Grady
Blk91stang said:No worries. I just got a little caught up OT:, I'm turning 21 at midnight tonight so I thought the cheers was appropriate ) . I can tell you that if I could afford a Dart Block right now, a 347 would end up inside of it despite my arguments .
Blk91stang said:No worries. I just got a little caught up OT:, I'm turning 21 at midnight tonight so I thought the cheers was appropriate ) . I can tell you that if I could afford a Dart Block right now, a 347 would end up inside of it despite my arguments .
Killercanary said:
If you had a dart block, why not go for a 363ci? Its just a 4.125 bore instead of the standard .030" overbore.
Killercanary said:
If you had a dart block, why not go for a 363ci? Its just a 4.125 bore instead of the standard .030" overbore.
divit250r said:I've seen several pics of 347 builds and all versions had compression heights on the pistons that put the pin right through the oil control ring. Is this not as much of a problem as it used to be for street engines? I'm not trying to start a war, just honestly curious about this.
Scott