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Topic Review (Newest First)
03-31-2013 12:21 AM
noslokcorb
is this a no brainer on a complet carb to pan deal on a GM rocket motor?

today I was picking up some camaro parts from an old racer that had retired and is down to his last few pieces and on his engine stand he had a built 415ci rocket block motor with the dyno sheet showing over 440hp and 500ft pounds of torque, he had all the receipts ,dyno sheet, carb to pan, etc, he said all I had to do was drop it in and set the timing, it was built as a cheater motor with a custom cast iron intake made, chevy bowtie heads, and he claimed that if I changed intake and used headers instead of manifolds like he did it would be a 40 to 60 hp gain, he also said it had 9.5 compression so it ran on pump gas , he had $13k into it and it said he had it in a street legal car and it hardly had 1k miles on it, he told me $4000 takes it, my question is installed on a dyno or running, what kind of value is it worth? I am kinda new to all this top notch race stuff, is it a good deal, decent deal? any help is greatly appreciated
01-04-2013 06:06 PM
Project89
Quote:
Originally Posted by CNC BLOCKS NE View Post
Where do you want to be for compression.

On your build I would go to a .904 lifter to reduce the pressure angle of the lifter.

With the tall deck I would have gone with the DRCE-3 oiling at no charge and gone to a 55MM cam which makes for a much better profile, You can't get a big enough base circle cam LOL.
had to save a lil money were i could, am going with the larger lifters still trying to decide between hyd roller or solid roller, my friend is running the hyd roller and i think i may go that way to make it a lil more street friendly


as much as i hate to im going to go low on the compression at around 8.2-8.5-1 since this engine will see alot more boost then i would normally run i.e around 30 psi . if e85 was more redilly available in my area i would deff go for 9.5-1 cr

typically on my street strip suff i built before i set up the engines with a min of 9.0-1 cr and a max of around 9.7-1
Quote:
Originally Posted by vinniekq2 View Post
I dont understand why you didnt use an LS-X combo. 245 cc heads are available.NRE builds street versions that make that much power.and the alien FI is supposed to work well
the ls stuff is still pretty expsensive more so then the gen 1 stuff when u start getting into hardcore racing parts , im going to make my venture into the lsx series of engines soon though im thinkng about buying a 4.8 or 5.3 and slapping a 76 or 88 mm turbo on it in an s10 pickup
01-04-2013 09:43 AM
vinniekq2 I dont understand why you didnt use an LS-X combo. 245 cc heads are available.NRE builds street versions that make that much power.and the alien FI is supposed to work well
01-04-2013 09:13 AM
CNC BLOCKS NE
Quote:
Originally Posted by Project89 View Post
i figured i would update this i ended up buying a tall deck iron eagle block , with the bbc cam tunnel,


i did purchase 4 inch stroke crank but was able to sent it back in for the 3.875 stroke crank.im going with the 427ci build instead 3.875 x 4.185 with a 6 inch rod

i havent decided on a piston yet as i can get the afr 245s with a 70 or 80cc chamber and im waiting to hear back from some ppl running the 245 heads with the different chambers to see if i should get the 70 or 80's
other then that i need to come up with a cam and then ill be able to start assembling it

im going to run a pair of 70 or 76mm turbos on this engine should be able to make 1400/1,500 hp pretty damn easily
Where do you want to be for compression.

On your build I would go to a .904 lifter to reduce the pressure angle of the lifter.

With the tall deck I would have gone with the DRCE-3 oiling at no charge and gone to a 55MM cam which makes for a much better profile, You can't get a big enough base circle cam LOL.
01-04-2013 02:37 AM
Project89 i figured i would update this i ended up buying a tall deck iron eagle block , with the bbc cam tunnel,


i did purchase 4 inch stroke crank but was able to sent it back in for the 3.875 stroke crank.im going with the 427ci build instead 3.875 x 4.185 with a 6 inch rod

i havent decided on a piston yet as i can get the afr 245s with a 70 or 80cc chamber and im waiting to hear back from some ppl running the 245 heads with the different chambers to see if i should get the 70 or 80's
other then that i need to come up with a cam and then ill be able to start assembling it

im going to run a pair of 70 or 76mm turbos on this engine should be able to make 1400/1,500 hp pretty damn easily
11-01-2012 05:52 PM
Project89
Quote:
Originally Posted by CNC BLOCKS NE View Post
Morel has a .904 hyd lifter they just came out with that being said the Dart SHP PRO block would be a good choice with the BBC cam tunnel, 4 bolt billet caps from front to rear and its about 330.00 more then the std. SHP block.
thats the combo he is running in his car
11-01-2012 09:24 AM
CNC BLOCKS NE
Quote:
Originally Posted by Project89 View Post
been talking to a fellow board member with a twin turbo 406 and i think im going to go with a hyd roller instead of a solid as he is running .640 lift on his morel lifters with no issues, and i dont plan on going any higher then that
Morel has a .904 hyd lifter they just came out with that being said the Dart SHP PRO block would be a good choice with the BBC cam tunnel, 4 bolt billet caps from front to rear and its about 330.00 more then the std. SHP block.
11-01-2012 01:13 AM
Project89 been talking to a fellow board member with a twin turbo 406 and i think im going to go with a hyd roller instead of a solid as he is running .640 lift on his morel lifters with no issues, and i dont plan on going any higher then that
10-31-2012 12:28 PM
CNC BLOCKS NE
Quote:
Originally Posted by 1Gary View Post
Northeast huh.Want to tell us what city??. Maybe change your signature.
Gorham, Maine
10-31-2012 11:24 AM
1Gary Northeast huh.Want to tell us what city??. Maybe change your signature.
10-30-2012 04:49 PM
CNC BLOCKS NE
Quote:
Originally Posted by 1Gary View Post
We went through lifter bore issues with the 565 and had two trusted machine shops that failed to get it right.It was after that we fixed the problem ourselfs.Then knowing that,in building the 632 the Jesel's where the lifter of choice.
Not to many shops have the correct equipment for measuring lifter bores and then they don't have the correct tools to hone the lifter bores.
10-30-2012 04:09 PM
1Gary We went through lifter bore issues with the 565 and had two trusted machine shops that failed to get it right.It was after that we fixed the problem ourselfs.Then knowing that,in building the 632 the Jesel's where the lifter of choice.
10-30-2012 03:01 PM
CNC BLOCKS NE
Quote:
Originally Posted by Project89 View Post
thanks that seems to go with everything ive been reading latley on lifters.
any chance u know the cost on a set off hand?
I don't ship out any blocks unless I have lifters in hand to measure them, ISKY is a good lifter but it takes 2 or 3 sets to make up one set. There are a lot of idiots out just buying lifters and dropping them into the bores with out measuring anything and wonder why they have problems.

Those liftres are around 1350 a set. If your worried about cost over quality you can probably find a cheap set on EBAY.
10-30-2012 02:48 PM
vinniekq2 OldB, my birthday is January 18 and my racing buddy in Calgary is Jan 16.good month I guess
10-30-2012 02:40 PM
Project89
Quote:
Originally Posted by CNC BLOCKS NE View Post
I have not seen a set of Crower .904 lifters I was able to use because of out of roundness.

Here is a link to verify what I am talking about.

Roller lifter roundness - Yellow Bullet Forums

The best lifter on the market by far is the Jesels, There sizing is very good and there lifters are DLC coated as well I have seen about every lifter made and second best would be the Morels.

thanks that seems to go with everything ive been reading latley on lifters.
any chance u know the cost on a set off hand?
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