Bore Notching
#12
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Here is a pick of my 454 bore notch. When Valako did this to my blocks he said he saw 25-30hp on back to back dyno runs. I believe they pulled the heads off on the dyno, bore notched the engine, and then made more dyno pulls. This was a built 454 and I believe it was running 2.30" valves.
[ATTACH=CONFIG]537717[/ATTACH]
[ATTACH=CONFIG]537717[/ATTACH]
Last edited by Rookie; 02-26-2015 at 07:41 PM.
#13
Platinum Member
Platinum Member
Here is a pick of my 454 bore notch. When Valako did this to my blocks he said he saw 25-30hp on back to back dyno runs. I believe they pulled the heads off on the dyno, bore notched the engine, and then made more dyno pulls. This was a built 454 and I believe it was running 2.30" valves.
[ATTACH=CONFIG]537717[/ATTACH]
[ATTACH=CONFIG]537717[/ATTACH]
#15
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As far as JimV, he used to be the go to guy here on oso years back for cylinder head work. http://www.valakoraceheads.com/
He had alot of happy customers right here on oso. He probably doesnt post much any more because of threads like this one below.
http://www.offshoreonly.com/forums/g...s-540-sci.html
#16
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Join Date: Jul 2012
Location: GPW Michigan
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My build is not looking for the absolute max hp. It was supposed to be a low dollar re-fresh of a 25yr old engine. It has grown exponentially.
1988 Mag 454 bored .030
Wiseco pistons +21cc domes
K1 rods
AFR 305 cyl. heads 114 cc chambers
Scorpion rockers 1.7
Victor Jr manifold
Holley 850 carb
Gil manifolds w/ Hardin aluminum risers wet
Morel roller lifters
Cam TBD Bob Madura will be consulted
Rookie Thanks for the pic. It is worth a thousand words.
Thanks
1988 Mag 454 bored .030
Wiseco pistons +21cc domes
K1 rods
AFR 305 cyl. heads 114 cc chambers
Scorpion rockers 1.7
Victor Jr manifold
Holley 850 carb
Gil manifolds w/ Hardin aluminum risers wet
Morel roller lifters
Cam TBD Bob Madura will be consulted
Rookie Thanks for the pic. It is worth a thousand words.
Thanks
#17
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Ive seen a few engine builders and cylinder head specialists state that, the published flow numbers on the AFRs, do not live up to their claims. .
As far as JimV, he used to be the go to guy here on oso years back for cylinder head work. http://www.valakoraceheads.com/
He had alot of happy customers right here on oso. He probably doesnt post much any more because of threads like this one below.
http://www.offshoreonly.com/forums/g...s-540-sci.html
As far as JimV, he used to be the go to guy here on oso years back for cylinder head work. http://www.valakoraceheads.com/
He had alot of happy customers right here on oso. He probably doesnt post much any more because of threads like this one below.
http://www.offshoreonly.com/forums/g...s-540-sci.html
#18
Registered
iTrader: (3)
My build is not looking for the absolute max hp. It was supposed to be a low dollar re-fresh of a 25yr old engine. It has grown exponentially.
1988 Mag 454 bored .030
Wiseco pistons +21cc domes
K1 rods
AFR 305 cyl. heads 114 cc chambers
Scorpion rockers 1.7
Victor Jr manifold
Holley 850 carb
Gil manifolds w/ Hardin aluminum risers wet
Morel roller lifters
Cam TBD Bob Madura will be consulted
Rookie Thanks for the pic. It is worth a thousand words.
Thanks
1988 Mag 454 bored .030
Wiseco pistons +21cc domes
K1 rods
AFR 305 cyl. heads 114 cc chambers
Scorpion rockers 1.7
Victor Jr manifold
Holley 850 carb
Gil manifolds w/ Hardin aluminum risers wet
Morel roller lifters
Cam TBD Bob Madura will be consulted
Rookie Thanks for the pic. It is worth a thousand words.
Thanks
#20
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Join Date: Jul 2012
Location: GPW Michigan
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Did the bore notching today.
Big thanks to Rookie for the pics.
Did not make a template. Used the head gasket, layout dye, a sharpie and a drum sander to notch the bores.
On my way back together.
Big thanks to Rookie for the pics.
Did not make a template. Used the head gasket, layout dye, a sharpie and a drum sander to notch the bores.
On my way back together.