What motors better for a buildup?

Go down

What motors better for a buildup?

Post  bronco911 on July 24th 2014, 5:52 pm

Picked up 3-429's and a 460 out of a 76 Lincoln last night, wondering which one will be best for a build 5-700 ish
1-c9veb block with c9vea heads

2- diveAA's blocks with dove heads

Or, the 460 (did not feel like scraping the oil off it to read the numbers)

Thanks, Ray
avatar
bronco911

Posts : 103
Join date : 2013-09-17
Age : 47
Location : Grand Ledge, MI

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  Rabbit on July 24th 2014, 6:34 pm

well im not sure if the C9VE are are as good as the DOVE blocks but if I was to pick it would be the D1VE just because of the taller deck and if it had the stock bore 4.360 that would be a pulse but 750hp well I think all of them could handle it as so as they can pass a magnaflux or all the other ways to test for cracks but I would not go past the 850 mark with a stock block but that's just me there has been people that done 850+ all day
avatar
Rabbit

Posts : 57
Join date : 2014-04-28
Age : 31
Location : Dinwiddie VA

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  rmcomprandy on July 24th 2014, 7:17 pm

Put the early heads on the 460 and hope the exhaust seats don't recede...

rmcomprandy

Posts : 4985
Join date : 2008-12-02
Location : Roseville, Michigan

View user profile http://www.rmcompetition.com

Back to top Go down

Re: What motors better for a buildup?

Post  quick 52 on July 24th 2014, 7:29 pm

rmcomprandy wrote:Put the early heads on the 460 and hope the exhaust seats don't recede...
What

quick 52

Posts : 612
Join date : 2011-01-14
Age : 67
Location : leonard mi.

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  bronco911 on July 24th 2014, 7:48 pm

quick 52 wrote:
rmcomprandy wrote:Put the early heads on the 460 and hope the exhaust seats don't recede...
What

X2  Question 
avatar
bronco911

Posts : 103
Join date : 2013-09-17
Age : 47
Location : Grand Ledge, MI

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  Dave De on July 24th 2014, 10:16 pm

Randy is saying that you run the D0VE heads and hope that the non hardened exhaust seats dont burn. Kind of a sunken valve problem.
avatar
Dave De

Posts : 525
Join date : 2011-05-27
Location : Utica, MI

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  rmcomprandy on July 24th 2014, 10:17 pm

I am going to take a wild guess and figure that you guys have no experiences about the use of heads with UN-hardened exhaust valve seats and the potential resultant issues with using unleaded gasoline.

Ignorance is bliss ... so, never mind, forget I said anything.


"Good judgement comes from experience and, experience ...well, it comes from bad judgement", Ben Franklin

rmcomprandy

Posts : 4985
Join date : 2008-12-02
Location : Roseville, Michigan

View user profile http://www.rmcompetition.com

Back to top Go down

Re: What motors better for a buildup?

Post  dfree383 on July 24th 2014, 11:55 pm

I'd do like randy said as start with a 460 crank in any of the blocks and pick the best looking early heads. And like he's saying they will wear the exhaust seats. But as long as your not expecting to build a high mileage engine it's an issue but one that typically will take a while to surface.

Now to the goal...... 500 is not a super high goal at it can be achieved with a reasonable effort with the parts you have and a modest budget...... 700 is a whole lot more work and cost depending on your ability and is going to hard on pump unleaded gas with the heads you have.
avatar
dfree383
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 13970
Join date : 2009-07-09
Location : Home Wif Da Wife.....

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  D. Sea on July 25th 2014, 11:30 am

Not a mind reader but perhaps he was asking which Block to use as a foundation. Or perhaps he meant which starter "Motor"  Razz 
avatar
D. Sea

Posts : 2755
Join date : 2008-12-02
Age : 48
Location : Kentucky

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  bronco911 on July 25th 2014, 12:29 pm

D. Sea wrote:Not a mind reader but perhaps he was asking which Block to use as a foundation.  Or perhaps he meant which starter "Motor"   Razz 

Yeah, that was pretty much my intent, wondering which block would be best, if any difference at all
avatar
bronco911

Posts : 103
Join date : 2013-09-17
Age : 47
Location : Grand Ledge, MI

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  dfree383 on July 25th 2014, 12:39 pm

bronco911 wrote:
D. Sea wrote:Not a mind reader but perhaps he was asking which Block to use as a foundation.  Or perhaps he meant which starter "Motor"   Razz 

Yeah, that was pretty much my intent, wondering which block would be best, if any difference at all
The ones you have listed are typically all about equal. Unless you sonic test them for cylinder wall thickness. The earlier blocks do have a little shorter deck, but that's not a big deal.
avatar
dfree383
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 13970
Join date : 2009-07-09
Location : Home Wif Da Wife.....

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  cool40 on July 25th 2014, 1:11 pm

I'd go with the c9.IMO the casting is a little better quality than the later.unless you have one of the few d1ve blocks with thick mains!
avatar
cool40
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 7135
Join date : 2009-08-31
Age : 47
Location : on the 1/8 mile dyno

View user profile

Back to top Go down

Re: What motors better for a buildup?

Post  Super Snake Steve on July 26th 2014, 4:29 am

Just went thur the sunken valve thing they looked like a sink hole in fla so I had harden seats and bronze guilds and be done with it my heads were 71 DOOE-R that's why I spent the $ on them

Super Snake Steve

Posts : 141
Join date : 2012-07-18

View user profile

Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum