72 LSX mounts without cutting frame?

[70ptta]

Has anyone on here used the early classic mounts. Ive read these can help me but their site says slight frame modification may be required?

[LockDoc]

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I bought these for the '67 Panel Truck with the LS1/4l60e combo and they fit like a glove..... You can also get them in a coated version.

http://www.ebay.com/itm/Hooker-Heade...xTxRxO&vxp=mtr

LockDoc

[SoMsippi_B-tie]

Originally Posted by 70ptta

Has anyone on here used the early classic mounts. Ive read these can help me but their site says slight frame modification may be required?

I have a 69 C10 and I built a 5.3 and mated it to a 700r4. I used Early Classic motor mounts, Early Classic transmission crossmember for 700r4, and Hedman LS Swap headers. My truck is lowered so I also used the Holley oil pan so that the original truck pan wouldn't be hanging below my front crossmember. The Early Classic statement about cutting the frame is for the older C10's, not the 67-72 year models. Everything lined up great and worked just fine for my application. The motor mounts also move the motor fwd away from the firewall so you have plenty of room on the back side. I think their design allows for you to easily slick the firewall off if you want.

I built a jig out of wood to simulate the motor mounts and bottom of oil pan. I also built a mating jig to simulate the motor mounts on the block and bottom of the oil pan. I used this to align and measure my motor mount locations in the frame prior to drilling the extra holes required in the crossmember and to also keep things square because the mounts have elongated holes and they also have a high and low bolt pattern.