LQ9: 364 vs 408
Yes you do! 
Kyle... I'm sitting here tapping my block for my alternator hole... Is this something you guys offer to do for an added charge?
I don't mind doing it, I have the pilot hole done about to do my 5/16 bit then tap it. I just didn't know if you guys had the correct tools, I'm kinda limited in some areas to do it 100% "correct".
Kyle... I'm sitting here tapping my block for my alternator hole... Is this something you guys offer to do for an added charge?
I don't mind doing it, I have the pilot hole done about to do my 5/16 bit then tap it. I just didn't know if you guys had the correct tools, I'm kinda limited in some areas to do it 100% "correct".
My opinion, if you're wanting 500 at the wheels and daily it, I'd opt for the 408. Larger cubes will always make more power more street friendly.
Example:
500 at the wheels in a 408 will have better street manners than the same power in a lesser cube engine.
Fuel mileage will be a toss up as the larger engine will have to work less to move the same amount of weight.
Example:
500 at the wheels in a 408 will have better street manners than the same power in a lesser cube engine.
Fuel mileage will be a toss up as the larger engine will have to work less to move the same amount of weight.
Id love to make the 408, but im just not sure if its worth the extra $1,000 to do so. The only reason i started to consider it is cause cubes rule.
I completed the drilling (pilot-5/16) and then the tap in probably 30 minutes total REALLY taking my time, wasn't that bad.
But, I spent probably 25$ in supplies to make sure everything went smooth and 100% correct. Should have just let you guys do it.
It looks better than most my factory holes.
I opted to zero deck my block and try to get my compression as high as I could on pump gas. I am 11.9:1. I'm hoping the added compression will offset some of the added power the 408 gets from more cubes.
My buddies 408 l92 top end build is very similar to mine but he is 11:1.
On The Tree
Joined: Jul 2007
Posts: 187
Likes: 0
From: KCMO
It's not a for sure method and some parts would be different/bigger for a 408 but just figure 1.35rwhp per ci for a h/c/i performance build. Since you mentioned wanting 500rw from a 370.
370ci x 1.35 = 499.5 rwhp
408ci x 1.35 = 550.8 rwhp
50 rwhp for $1k is a hell of a bang for the buck.
370ci x 1.35 = 499.5 rwhp
408ci x 1.35 = 550.8 rwhp
50 rwhp for $1k is a hell of a bang for the buck.
It's not a for sure method and some parts would be different/bigger for a 408 but just figure 1.35rwhp per ci for a h/c/i performance build. Since you mentioned wanting 500rw from a 370.
370ci x 1.35 = 499.5 rwhp
408ci x 1.35 = 550.8 rwhp
50 rwhp for $1k is a hell of a bang for the buck.
370ci x 1.35 = 499.5 rwhp
408ci x 1.35 = 550.8 rwhp
50 rwhp for $1k is a hell of a bang for the buck.
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