What stroker kit?

[70 cutlass 442]

No problem. I would take that bet any day of the week. Better yet, lets go with a 300 shot. Thats a little more of a test for mine. Then if that 351 is still running we can add a second stage, lol....then maybe mine will flinch.

what block do you have? if you are runnign the new boss with a forged bottem end then hands down you will have any facotry block covered..... but if you have a OEM block ten you are on barrowed time no matter what....

[dr doom]

Dr Doom, I'm curious, whats our combo, weight, and stats (HP and ET?)


I'm comparing the 350-ish cube engines to each other. No shit a stroked 9.5 will stopm a stroked 8.2, thats a no-brainer. When comparing the 347cid to the 351cid the 347 will make better power. It is roughly 80-100 pounds lighter that the 351, it has a lighter rotatiing assemble, less rotational mass, and has been proven over and over, I have seen it first hand. Now, like I said, when comparing to a 9.5 stroker, there is no contest.

I love discussions like this. Debates are fun. Arguments suck.

See you still arent comparing the same two things here. A 347 is a stroked 302. Stroke a 351 the same amount and a 351 is going to be a much better motor. Even with the added weight of the 351 the increase in horsepower is huge. A strong 347 is gonna put down 350ish to the tires. A stroked 351 will be well in the 400 range.

[DRK]

My N/A 347 puts down over 400rwhp, shit it makes 370ftlbs at the tires at 3300rpm.

[badass88gt]

But nobody mentioned anything about a stroked 351 engine. I was discussing the engines that were mentioned, a 347 and the 351. You need to do a little better research, my 347 puts down 420 at the wheels with unported heads, hydro cam and 93 octane. Your 350hp number is off.

[badass88gt]

what block do you have? if you are runnign the new boss with a forged bottem end then hands down you will have any facotry block covered..... but if you have a OEM block ten you are on barrowed time no matter what....

You are correct, though I wouldnt waste my money on a Boss block. I have a Dart in mine, I also have a Moldex billet crank and Carrillo billet rods in it. Some have said it is overkill for a daily driver, lol.

[Fast95Stang]

Just a lil more info: Iron heads? Stick?Cam size? Rear Gear?

With a 11.1 You plan on shifting around 6200-7000?

I have Brodix ST 5.0 heads (http://www.brodix.com/heads/st.html). Manual trans. Have to check on cam specs. 3.73's in the rear.

I don't know what compression ratio I'll be running or where I plan on shifting...

why not just build a 351 and use the money you were gonna use on the internals on heads?

A 351 is out of the question, I already have the 302 based block and I want to do this on somewhat of a budget. Now that doesn't mean I'm going to go cheap, just not spend unnecessary money. I'm glad you guys are having a great discussion about 347's and 351's but could we get back on topic?

I will definately check out fordstrokers.com and AD Performance.com. I have to say everyone has convinced me to build a 347. I just have a couple questions... Will I be able to use the cam out of my 306? I know this will be a tough one to answer without any cam specs. What are the fuel system requirements? Right now I have a 190 lph pump with 30lb injectors.

[BOSS LX]

I have Brodix ST 5.0 heads (http://www.brodix.com/heads/st.html). Manual trans. Have to check on cam specs. 3.73's in the rear.

I don't know what compression ratio I'll be running or where I plan on shifting...

A 351 is out of the question, I already have the 302 based block and I want to do this on somewhat of a budget. Now that doesn't mean I'm going to go cheap, just not spend unnecessary money. I'm glad you guys are having a great discussion about 347's and 351's but could we get back on topic?

I will definately check out fordstrokers.com and AD Performance.com. I have to say everyone has convinced me to build a 347. I just have a couple questions... Will I be able to use the cam out of my 306? I know this will be a tough one to answer without any cam specs. What are the fuel system requirements? Right now I have a 190 lph pump with 30lb injectors.

Another vote for AD Performance.com. My motor was not built there, but I ordered everything from them. I have heard nothing about good things about their machine shop.

With your heads, a 347 is a good choice. As for the cam, it is worth it to pony up some more money to look at other cam options.

[Fast95Stang]

Another vote for AD Performance.com. My motor was not built there, but I ordered everything from them. I have heard nothing about good things about there machine shop.

With your heads, a 347 is a good choice. As for the cam, it is worth it to pony up some more money to look at other cam options.

Cool, I will be having my engine built locally but I may order from them.

Any cam recomendations?

Also, I have a brand new Edelbrock Performer intake manifold. I was in the process of putting it on when I found all this crap. Will this manifold work well with a high compression 347? Or will it hold the engine back as far as making power? I plan to have it ported and polished before I put it on, that is if it's the manifold I use.

[BOSS LX]

Cool, I will be having my engine built locally but I may order from them.

Any cam recomendations?

Also, I have a brand new Edelbrock Performer intake manifold. I was in the process of putting it on when I found all this crap. Will this manifold work well with a high compression 347? Or will it hold the engine back as far as making power? I plan to have it ported and polished before I put it on, that is if it's the manifold I use.

What happened to your PER 306?

[badass88gt]

Keep in mind, 302 (306) parts will make 302 power. Keep it under 6500rpm on the roller block. I would try and sell that intake and look for something a little more potent. For compression keep it under 11:1 for 93 octane. The cam upgrade would be a definite benefit. I'm a firm believer in custom grinds spec'd out for your combo, and I'm a loyal Flowtech Induction customer. His cam exceeded all of my "requirements" and his customer service is amazing. Do a search on Ed Curtis FTI around the net, you will find lots of haters, none of them are actual customers of his. I have yet to see anyone unhappy with the performance of his products, and I have asked a few times in my own threads on Corral, lol.

[Fast95Stang]

My buddy told me that his co-worker has a 347 on an engine stand that he is willing to sell. He is going to sell it for a VERY good price! I just have to wait for him to break in his new 347 and as long as everything is fine with that one I will be picking up the other one. The engine was built by C&S which I have heard is a great shop. It has 3,000 miles on it, he has all of the receipts and also the dyno sheet. He told me that the engine dyno'ed at 475 through GT-40 heads!! I have Brodix ST-5.0 heads, I can only imagine what that will do for it!!! After I buy the engine I am deffinately taking it to a shop to have it looked over before I put it in my car. I will even have the shop run it to make sure its all OK.

What fuel system should I run? Right now I have a 190lph pump and 30# injectors.

[yellow vert]

Hi Greg why do you think that you need a new motor? Have you done any testing to see what could have gone bad? I cannot remember where I saw it but I think that you said that there was oil in the intake. One last question where you running valve caver breathers and the PCV system?

[Nick 1]

HAHAHA theres a good joke. You bring a built 347 and put it against my built 351w .

How about 281" with a little boost ???

[DRK]

I had to post this response to this that was on MMA

I thought I knew how to waste money.......I could learn something here.:alc:
Properly diagnose and fix what you have. If you're worried about it being contaminated-take it apart and clean it. If you're worried about blow-by or using oil, prove it. Don't go overboard and blow a bunch of cash just because-you're not going to to come out ahead in this situation.

[FourEyedFord]

The engine was built by C&S which I have heard is a great shop. It has 3,000 miles on it, he has all of the receipts and also the dyno sheet. He told me that the engine dyno'ed at 475 through GT-40 heads!!

475 HP with GT40 heads N/A? That seems a little steep to me, but I could maybe see that with your Brodix heads.

I would maybe look at just doing your own thing, something new since you only need a short block. Probe/JE/Ross pistons, Eagle 4340 crank, Eagle 4340 H-beam rods and call it a day! Eagle stuff is great, and has proven that it can handle over 1000hp and revs up to 8000rpm with just 4340 stuff. In my opinion I wouldn't try and cut corners now, who knows what you will want to do in the future, and it will be nice to have a little extra insurance. I know you still have a stock block and it will mostly be you limiting factor, but I would still go with the 4340 stuff.

[badass88gt]

475 flywheel hp no problem. 475 at the wheels, no way in hell.

I agree with the 4340 stuff if the budget allows it. If not, theres certainly nothing wrong with the Scat 9000 cranks.

[yellow vert]

I still think that there is nothing wrong with the old motor. But if you wont a new motor than never mined.

[badass88gt]

You are probably correct. I'm sure its fine.

[Project FS]

I had to post this response to this that was on MMA

Maybe now this thread will die instantly like when I posted it on MMA.

[badass88gt]

Mixed Martial Arts? Mercury Mountaineers Anonymous?