03-29-2005, 03:26 PM | #26 |
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Actually, I was mistaken. From the info I've found, with pre '87 blocks you'll need to use aftermarket lifters. If your block is '87 or newer, the OEM lifters will be OK. GM used a stamped metal piece in the lifter valley to keep the lifters aligned.
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03-29-2005, 09:35 PM | #27 | ||
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
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03-29-2005, 09:55 PM | #28 |
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OBTW i picked them up today and thursday they are going down to the local head shop and getting tanked, seals, and steam holes. 70 bucks doesnt sound steep does it
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
03-30-2005, 12:25 AM | #29 |
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there's a way to make the factory roller lifters work in older blocks-some guy sells instructions on ebay for it-but I'm sure most of us could figure it out just like he did...
robert
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04-20-2005, 08:49 PM | #30 |
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ok so i took them to the head some monday and got them back today (wednesday) they ran them though the washer, checked all the valves to see if they were seeling fine (and they were) and drilled the seam holes. i got out of there only spending 40 bones. next i got to by head bolts, intake, head, and exhaust gaskets, and i am going to do a carb spacer too. i am stoked
the valves are red cause they were on a motor with NOS, but they will clean up
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-20-2005, 11:36 PM | #31 |
Excelsior, You Fathead.
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Have you calculated CR? It might be hard to run those with even Premium. I would look into maybe a dished pistons to run at most 10.5-1 compression. I forgot the site but I know there is a site that you can figure CR.
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Go Navy. The Sea Is Ours. Budget 350 Build http://67-72chevytrucks.com/vboard/s...38#post2264638 Last edited by Dick Dale; 04-20-2005 at 11:37 PM. |
04-21-2005, 12:44 AM | #32 |
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if you look at the first page, there is a picture of my pistons. they are dished. it would be cool if you could remember that site
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-21-2005, 07:35 AM | #33 | |
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04-22-2005, 12:11 AM | #34 |
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linkie no workie on my end
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-22-2005, 12:31 AM | #35 |
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
04-22-2005, 12:44 PM | #36 | |
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04-22-2005, 07:52 PM | #37 |
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does anyone have a guess on the ccs of my pistons pictured on the first page are? trying to figure out my compression
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-22-2005, 07:59 PM | #38 |
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I would guess around a minus 18cc dish. It will add 18cc's to your chamber size when figuring the ratio
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
04-22-2005, 08:17 PM | #39 |
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k so the bore is 4.126 (found on nastyz28) and with it being bored .030 over then it would be 4.156
and the stroke of a sb400 is 3.76 (found same place) 8 cylinders (didnt have to look that one up) 58cc combustion chamber -18cc pistons .039 compressed thickness on the gaskets i ordered from summit came out with 408 CI (6.69L) and a compression ratio of 10.870586901017782 compared to the 9.3 that i have now (74cc combusion chamber) Thanks for the help BigJim
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler Last edited by 68w/sbc406; 04-22-2005 at 08:18 PM. |
04-22-2005, 08:21 PM | #40 |
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well...the bore for a 406 is 4.155 and the stroke is 3.75. The stock bore is 4.125, then add .030 for overbore. You listed the BBC 400 dimensions(402CI) which is a .030 over 396CI
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
04-22-2005, 08:25 PM | #41 |
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10.846879439180027 off the numbers you gave me
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-23-2005, 06:28 PM | #42 |
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so fedex showed up today christmas in april i also got a carb spacer but it is being shipped from ohio so maybe monday on that.
in the pictures the last two are of the gasket fitment. i dont see why i couldnt trim where the red line is, but just asking before i do it.
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-23-2005, 11:23 PM | #43 |
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are you sure they are the correct side up.....? if they are down the wrong way they wont match up properly to the head
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04-24-2005, 12:17 AM | #44 |
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i am pretty sure i had them right. i will check before i put them together. but if i was right can i trim that? i checked all the holes and everything lined up.
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
04-24-2005, 09:11 PM | #45 |
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I wouldn't trim them, you wont see that after the exhaust is on, cant give you a good reason why not to....just my paroniod mind at work. better go get my meds.
Dont forget to to use headbolts with washers. These also use spark plugs with washers and use some antiseeze on the plugs as well. I'm sure you already know that, but you would be surprised on how many people dont and mess the heads up. Almost forgot you have to use self aligning rockers or aftermarket guides. If you use the stock guides with the factory self aligning rockers the guides are marked for a certain position. some of them will have a number stamped in the corner and they only go on certain cyls. I have some thrown somewhere and can take a pic if you need
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F.A.S.T. President and Founder Fabricators for the Advancement of Sawsall Technology "A fear of the Sawsall is a sign of retarded sexual and emotional maturity." ~Sigmund Freud, "General Introduction to Psychoanalysis" Last edited by jamis; 04-24-2005 at 09:29 PM. |
04-24-2005, 11:20 PM | #46 | |
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thanks again Ben
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler |
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