How bad does the crank look ?
just blew it up!!!
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Joined: May 2008
Posts: 70
Likes: 1
From: Pensacola FL
I agree with the "you really need to check the bottom end" if you are building the top end and adding extra horses... I have seen on more than one occasion where 2 3 even 4 months later after a top build something on the bottom gives up ie rod bearings... I hope its not I dont wish bad on anyone.. but if it turns out to be then you have an excuse to build the bottom up to match the top//
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
Pull each plug wire and the one that quiets it down is your cylinder
If it was a flexplate it would make a different sound when you put it in gear. Oil pressure is a dead give away after it warms up. If it reads 10psi or lower at idle or the noise is very quiet when the engine is cold....that's a bearing!!!
If it was a flexplate it would make a different sound when you put it in gear. Oil pressure is a dead give away after it warms up. If it reads 10psi or lower at idle or the noise is very quiet when the engine is cold....that's a bearing!!!
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Well............I asked you this because I was mislead once by someone telling me to tighten them 1/4 turn after zero lash which is no good for a Hydraulic Roller. 3/4 to 1 turn is what's recommended. Without sufficient pressure on the lobe from the roller, it gets airborn at high rpms and slams into the camshaft. After awhile it chews up the cam and starts making a knocking sound very similar to a rod bearing. Pulling off plug wires doesn't do any good, you can't hear it at idle.
If you pull the intake and the lifters you can look down the lifter bore and see the cam lobes.
If you pull the intake and the lifters you can look down the lifter bore and see the cam lobes.
Le Mans Master
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
383!!!
Hey Im up in Ramsey, so not too far away. Hope I can see you car around.
I have been going to Cars and Cafe in Chanhassen this year (first Sat of every month) and I usually try to get over to Mystic Lake for the big show down there every summer.
Hey Im up in Ramsey, so not too far away. Hope I can see you car around.
I have been going to Cars and Cafe in Chanhassen this year (first Sat of every month) and I usually try to get over to Mystic Lake for the big show down there every summer.
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Racer
Joined: Nov 2007
Posts: 350
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From: coon rapids mn
i go to anoka just about every Saturday for their car show! the old man has a red 66 convertible we usually park together
Le Mans Master
Joined: Sep 2001
Posts: 7,739
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From: Unreconstructed, South Carolina
350 L98 crank with chewed up journal
L98 to 383
you have a roller cam so cam-to-rod clearance probably Not an issue.
certainly Not the best ... but the Cheapest 383 for you is probably a budget cast iron 383 crank with a set of sbc400 rods ... mated to your L98 pistons.
otherwise ... buy crank & 6" rods & pistons.
whichever 383 path you choose, best to have local shop balance rotating assembly.
L98 to 383
you have a roller cam so cam-to-rod clearance probably Not an issue.
certainly Not the best ... but the Cheapest 383 for you is probably a budget cast iron 383 crank with a set of sbc400 rods ... mated to your L98 pistons.
otherwise ... buy crank & 6" rods & pistons.
whichever 383 path you choose, best to have local shop balance rotating assembly.
Le Mans Master
Joined: Apr 2001
Posts: 5,000
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From: Minneapolis, Mn USA
Thread Starter
Racer
Joined: Nov 2007
Posts: 350
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From: coon rapids mn
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Racer
Joined: Nov 2007
Posts: 350
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From: coon rapids mn
drop parts off at the machine shop today. the block is getting cleaned magnafluxed,cylinders de-glazed new cam bearings. going to turn the crank and resize the one rod new bearings and rings and then i get to put it all back together! 
Advanced
Joined: Oct 2007
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Most times it a piston rod on an upper rebuild/cam change.........most hp is in the heads /cam and they will find the weak link in the system.
Racer
Joined: Oct 2009
Posts: 441
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From: San Antonio TX
Thread Starter
Racer
Joined: Nov 2007
Posts: 350
Likes: 0
From: coon rapids mn
it's running pretty good. been driving it easy got about 500 miles on her now but i have and oil leak not a major one but a annoying one. i would like to get up to b.i.r. sometime this summer and see what she will do?