Aluminum vs Iron Block for Forced Induction?
Aluminum vs Iron Block for Forced Induction? Im not getting alot of feedback over in the internal engine forum so I'll give it a try over here.
Go here
https://ls1tech.com/ubb/ultimatebb.p...c;f=1;t=008873
Go here
https://ls1tech.com/ubb/ultimatebb.p...c;f=1;t=008873
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Joined: Feb 2002
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From: the moon
Re: Aluminum vs Iron Block for Forced Induction? If I had a choice I would take the iron block and deal with the weight.But the aluminum block is fine IMO. ARE has 900hp n20 motors with sleeved aluminum blocks.
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From: Raleigh, NC
Re: Aluminum vs Iron Block for Forced Induction? From my research and discussions I've had, if you are not exceeding low 600 RWHP, you should be ok with the Aluminum block as long as your have your tuning right and avoid detonation. I believe having an Iron Block could be a step backwards in this case.
I chose to go with an Iron Block for the 422 buildup, because at some point I see close to 700 RWHP if I can ever get the fueling in place. DEFINITELY, I see an Iron Block or the C5R Aluminum block as a neccesity for anyone who may want RWHP in the mid-600's or higher.
You could get the BMR K-member and associated hardware and drop 100 pounds from your front, if you decide you require the Iron Block.
Again, I just don't see the difference between 346 and 366 CID gaining you anything. I'd prefer the Aluminum block up to a 382/383 CID, myself. Only after exceeding that would I worry about the Iron Block option. Then, if I had the money, I'd do the C5R. Otherwise, I'd go to the overbore/stroke on the Iron Block.
My 2cents. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I chose to go with an Iron Block for the 422 buildup, because at some point I see close to 700 RWHP if I can ever get the fueling in place. DEFINITELY, I see an Iron Block or the C5R Aluminum block as a neccesity for anyone who may want RWHP in the mid-600's or higher.
You could get the BMR K-member and associated hardware and drop 100 pounds from your front, if you decide you require the Iron Block.
Again, I just don't see the difference between 346 and 366 CID gaining you anything. I'd prefer the Aluminum block up to a 382/383 CID, myself. Only after exceeding that would I worry about the Iron Block option. Then, if I had the money, I'd do the C5R. Otherwise, I'd go to the overbore/stroke on the Iron Block.
My 2cents. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Re: Aluminum vs Iron Block for Forced Induction? I personally don't see the need to go iron.
Until i physically split the block from excessive power, i will continue to run an aluminum block
<img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" />
Just an opinion <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Until i physically split the block from excessive power, i will continue to run an aluminum block
<img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" />
Just an opinion <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
10 Second Club
Joined: Apr 2002
Posts: 1,755
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From: Cincinnati, Ohio
Re: Aluminum vs Iron Block for Forced Induction? I'm using an LS6 block with 4.080 sleeves and the Lunati crank for appr. 415 C.I.D.. I guess we will see how it holds up. Some of the people I talked to recommended the 4.080 sleeve versus the 4.100 (Katech & Agostino) for forced induction. I should be over 600HP when all is said and done. I just think an all aluminum block is high tech.
