Yellow Bullet Forums banner

1 - 8 of 8 Posts

·
Registered
Joined
·
5,393 Posts
Discussion Starter #1
Anybody ever add plates on the deck of the block so you could add a bigger stroke without killing the side load on the pistons.I seen this done before on Jack Barfields 10.5 car.Would it be worth it on a sbf with a 4.250 crank?
 

·
Registered
Joined
·
13,485 Posts
WE did it with cleveland blocks back in the day.
we also did it with the original Boss 302 blocks all the time.

but today, as you know,
the aftermarket offerings have the small bearing mains and taller decks made to order.
it will be easy on an aluminum block..just add longer sleeves.

a iron block can be done too, but the sleeves have to be allowed to stick up and out of original deck ,..and then a spacer added.
back when we did all of this, we used 8 inch long studs that gripped into the original deck.

it is just slow shop work.

any legit shop can do this if they have the TALENT.
 

·
FE Ford Specialists
Joined
·
3,976 Posts
I remember a blown Ram Air V Pontiac drag boat that had that done many, many years ago. Saw it at the Columbiaville races in Michigan. It was lettered "Fool's Way", ran on alky, and was absolutely bad ass dominant at that event. I looked at those plates for a half hour trying to understand what was done - they'd pushed longer sleeves through both the plate and block. It had similar aluminum plates along the pan rail to keep the oil inside where they'd clearanced right through the block.
 

·
Registered
Joined
·
7,489 Posts
i used to have a old mag that had a fella building big inch SBC,s way back in the 70s using deck plates and installing sleeves , it used a BBC connecting rod i forget how big the motors where . in the last few yrs i have seen a few LS based motors that where done with deck plates and resleeving the block after the deck plates where installed i think they where close too 500ci when it was all said and done .
 
1 - 8 of 8 Posts
Top