Should I put in a cam when I rebuild motor?

Unit 5302 · 07-11-2005, 06:27 PM

The cam is a 2000-6000rpm cam for the 351W or 302HO according to the Holley website.

51027LUN

.496/.502
218/224
276/281

2000-6000rpm. Application Hot street or Pro Street. The HO cam is a good grind and you're not going to be picking up much power with the E7's, while I expect you'll lose quite a bit of low end torque. The cam favors the exhaust side WAY too much. With an N/A setup on E7s, I see no reason to favor the exhaust.

88workcar · 07-14-2005, 06:35 AM

That cam will be just fine, I have a holly that is close to that, I also have a TFS that is close to that. I also have a reground X from cam motion that is just a little stiffer than those. Ported stock heads, cobra, cam, I ran as good as 12.40s at 1.9. Stock injectors and SD. I just tore up a bottom end, which is why I have been a little quiet. I have a set of ported hollys with the TFS in it a systemax intake, still SD and 19lb injectors. It went 11.88 @ 114 but was steady getting faster as I took fuel press away. I started at 45psi, and was down to 39psi. I ran great and I was setting up a 175 shot on it, but a rod bearing let go. So the 342 will be put in next. Put the cam in or you can have one of these, but you need a cam. Are your heads ported? I have set of killer E7s and these hollys are for sale also, both sets are ported real nice.

07-11-2005, 06:27 PM	#1
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: Should I put in a cam when I rebuild motor? The cam is a 2000-6000rpm cam for the 351W or 302HO according to the Holley website. 51027LUN .496/.502 218/224 276/281 2000-6000rpm. Application Hot street or Pro Street. The HO cam is a good grind and you're not going to be picking up much power with the E7's, while I expect you'll lose quite a bit of low end torque. The cam favors the exhaust side WAY too much. With an N/A setup on E7s, I see no reason to favor the exhaust.

07-14-2005, 06:35 AM	#2
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: Should I put in a cam when I rebuild motor? That cam will be just fine, I have a holly that is close to that, I also have a TFS that is close to that. I also have a reground X from cam motion that is just a little stiffer than those. Ported stock heads, cobra, cam, I ran as good as 12.40s at 1.9. Stock injectors and SD. I just tore up a bottom end, which is why I have been a little quiet. I have a set of ported hollys with the TFS in it a systemax intake, still SD and 19lb injectors. It went 11.88 @ 114 but was steady getting faster as I took fuel press away. I started at 45psi, and was down to 39psi. I ran great and I was setting up a 175 shot on it, but a rod bearing let go. So the 342 will be put in next. Put the cam in or you can have one of these, but you need a cam. Are your heads ported? I have set of killer E7s and these hollys are for sale also, both sets are ported real nice. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

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