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Old 11-06-2008, 06:29 PM   #1
meus31
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Default add four bolt main caps to 351????????

just wondering if this worth anything as far as strength is concerned a good block is not in the budget for next year. i was just wondering if any of you guys have added these and have any bad or good things to say about it or what girdle do you recommend . the motor makes six hundred on its own and i would like to give it 150 squirt next year. any insight would be great. the block already has a little fill in the water jackets. thanks
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Old 11-06-2008, 07:29 PM   #2
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W or C block?
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Old 11-06-2008, 08:50 PM   #3
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ita a 414 windsor , four inch stroke ,4.060 bore , scat crank 4340, la enterprises 6.300 rod. je pistons 11to1 solid roller pump gas motor with high ports and a super victor on it.
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Old 11-06-2008, 08:57 PM   #4
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You are probably ok with what you have at a low compression and a small dose of the spray will be fine, but if you can budget it, it is a good investment to make.

Actually a good affordable block to go with is the World Products Man O War block, because it has splayed billet caps which is very durable. If you are in need of any parts, shoot me a message or give me a call. I can usually give you plenty of options.

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Old 11-06-2008, 11:09 PM   #5
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By the time you splay the caps on most block plus the fill and girdle you could have bought a good World,dart,FRPP block.
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Old 11-07-2008, 12:59 PM   #6
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whatr year block do you have.?

I have a 1969 351 block with ProGrams Billet Main Caps.

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Old 11-07-2008, 02:40 PM   #7
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its a sixty nine block to my knowledge how hard are you getting after your motor qwik notch and how much did it cost to have them installed and line bored and honed
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Old 11-07-2008, 07:46 PM   #8
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It ended up being 13.5:1, with Brodix M1's, SuperVictor, hydraulic roller cam, 3200lbs with no transbrake on a shitty 9" et street.

It went 10.30@133 on nuts and 9.39@148 - 151 (if it spun a little bit) on a 225-250 plate unit.
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Old 11-09-2008, 01:47 AM   #9
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You will be fine into the mid to low 8 sec. zone. I have built a bunch of these combo's and have NEVER had a block failure. Usually cost about 500-600 to buy the caps and get them installed. VERY cost effective.
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Old 11-09-2008, 09:48 AM   #10
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Originally Posted by coupe performance View Post
You will be fine into the mid to low 8 sec. zone. I have built a bunch of these combo's and have NEVER had a block failure. Usually cost about 500-600 to buy the caps and get them installed. VERY cost effective.
I agree we have done a bunch of these big windsors that make over 700 fwhp N/A and some also use nitrous and are making over 1000hp. We have also never had ablock failure! But I think that if you are making over 700hp I think that the 4 bolt caps are a good idea. Also don`t use those junkie ass Red China caps as you will spend more getting them right then if you just used the Pro Gram caps to begin with. And the good blocks are 69-74 as these also have no problem going to 4.080 bore either. Dan
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Old 11-09-2008, 11:51 AM   #11
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I had considered adding 4 bolt caps to a 69 block I had.. But the main webbing under the out side bolts looked so thin.. That it seemed like drilling and tapping in that area would weaken the block.. Even if you only used 3/8 bolts on the out side..

I think the stock 2 bolt caps work just fine into the 700+ hp range..
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Old 11-09-2008, 12:35 PM   #12
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I had considered adding 4 bolt caps to a 69 block I had.. But the main webbing under the out side bolts looked so thin.. That it seemed like drilling and tapping in that area would weaken the block.. Even if you only used 3/8 bolts on the out side..

I think the stock 2 bolt caps work just fine into the 700+ hp range..
That is what we have always found! Also I have a set of Pro Gram caps for one of these blocks and they are half price if anybody needs some. Let me say this that we have never seen a problem with the webbing when installing any 4 bolt cap on a 69-74 windsor block. Dan
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Old 11-09-2008, 01:14 PM   #13
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I love the pro grams billet caps I have. really good looking piece.
My 69 block is at 4.125 and I have .165 - .170 between the walls still. Not sure how, this is some mystery Wednesday block that Ford made.

I think I may have to finish this engine now after reading all the fast low compression engines.

Hey grocery, why the 112 lobe? less overlap and some vacuum at idle? not sure why you wouldn't put a 105 -108 lobe in that thing since it is n/a
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Old 11-09-2008, 01:54 PM   #14
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Quote:
Originally Posted by qwiknotch View Post
I love the pro grams billet caps I have. really good looking piece.
My 69 block is at 4.125 and I have .165 - .170 between the walls still. Not sure how, this is some mystery Wednesday block that Ford made.

I think I may have to finish this engine now after reading all the fast low compression engines.

Hey grocery, why the 112 lobe? less overlap and some vacuum at idle? not sure why you wouldn't put a 105 -108 lobe in that thing since it is n/a
I don`t think that is such a mystery,At one time we had access to a sonic checker and I checked about 12-14 early windsor blocks and everyone of them would go 4.080 and still have over .230-250 0n the major thrusts,so I stopped checking them and never worried about them at that bore size.And if it was me and those blocks where in a NA engine @4.125 that wouldn`t worry me either. Dan
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Special thanks to Brian Mitchell for loaning us wizard 1
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Old 11-09-2008, 03:34 PM   #15
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definitely a good thing to know, Dan, thanks.....
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